Charts

Chart A: Pre-Combat Assist User Eligibility

This chart shows the requirements for users of various assists to be eligible to perform their assist pre-combat (meaning, while attacks can still be made by anyone on the team). For combat damage calculations, the unit only cares about how much damage it can do and does not account for counter attacks (including dying to vantage before actually doing damage) nor does it account for specials (including AoE specials or defensive specials like Miracle and thus includes overkill). Please note that ineligibility according to game rules (i.e. affected by Isolation) is already implied to result in an invalid assist user.

Chart B: Pre-Combat Assist Target Eligibility

This chart shows the requirements for targets of various assists to be eligible to receive those assists pre-combat (meaning at least one ally with its action left is threatening an enemy). Please note that ineligibility according to game rules (e.g. affected by Isolation, must be missing HP to be healed, etc) is already implied to result in an invalid assist target.

Chart C: Post-Combat Assist User Eligibility

This chart shows the requirements for users of various assists to be eligible to perform their assist post-combat (meaning, no attacks can be made by anyone on the team). Please note that ineligibility according to game rules (i.e. affected by Isolation) is already implied to result in an invalid assist user.

Chart D: Post-Combat Assist Target Eligibility

This chart shows the requirements for targets of various assists to be eligible to receive those assists post-combat (meaning, no attacks can be made by anyone on the team). Please note that ineligibility according to game rules (e.g. affected by Isolation, must be missing HP to be healed, etc) is already implied to result in an invalid assist target.

Chart E: Post-Movement Rally Target Eligibility

This chart shows the requirements for targets of various assists to be eligible to receive those assists post-combat (meaning, no attacks can be made by anyone on the team). This chart does not include requirements according to game rules (i.e. must be missing HP to be healed), only extra rules used by the AI.

Chart F: Pre-Combat Heal Thresholds

There are two charts related to pre-combat healing eligibility. The first shows the minimum amount of health required to be restored to a target by a healing assist in order to be considered for pre-combat healing. The second shows, in the case that the heal does not meet the threshold of the first chart, how much maximum health (or lower) the target must have according to the amount of health able to be healed.
Extra HP healed by Imbue counts for heal amount. Extra HP healed by Heavenly Light does not count for heal amount.

Guaranteed Pre-Combat Heal Threshold

NOTE: Restore threshold only matters when targeting a unit with no debuff.

Pre-Combat Heal Eligibility by Heal Amount

Example: Maria has Physic staff, which heals up to 8 HP. There is a level 1 Felicia with 8/14 HP, and a level 40 Felicia with 28/34 HP. Both can be healed by 6 HP, which is not enough to guarantee pre-combat heal from the previous chart. For a heal amount of 6, a target must otherwise have 20 or less Max HP. So the level 1 Felicia is eligible for pre-combat heal, while the level 40 Felicia is ineligible.

Chart G: Def/Res Debuff Skills List

This chart lists skills which inflict Def and Res debuffs and are taken into consideration for the "debuffer" status for an attacker. If a skill inflicts def or res debuffs but is not on this list, it is NOT taken into consideration for the "debuffer" status (e.g. refined Rogue Dagger does not count).

There are currently two tiers of priority within this category. Tier 1 skills will have priority over tier 2 skills.

Tier 1

Weapons:	Hliðskjálf

Tier 2

Weapons:	Rogue Dagger(+) (unrefined only) Poison Dagger(+) (vs infantry) Kitty Paddle(+) (vs tomes)
Passives:	Seal Def 1/2/3 Seal Res 1/2/3 Seal Atk/Def 1/2 Seal Atk/Res 1/2 Seal Spd/Def 1/2 Seal Spd/Res 1/2 Seal Def/Res 1/2

Chart H: Miscellaneous Debuff Skills List

This chart lists skills which inflict miscellaneous debuffs/poison damage and are taken into consideration for the "afflicter" status for an attacker. If a skill inflicts a debuff or does poison damage but is not on this list, it is NOT taken into consideration for the "afflicter" status (e.g. Gravity, unrefined Monstrous Bow do not count).

Chart I: Combat Buffs and Effects That Affect Chase Targeting

Less a chart, more a list of combat buffs and effects that have an affect on chase targeting. Assume the requirements of each skill are satisfied, unless stated otherwise to always be active. This list is not frequently updated and do not consider it comprehensive. Skills with similar mechanics will likely behave similarly.

Weapons

Brave Weapons
Alm's Refined Falchion, given the requirement is satisfied
Effective Damage Weapons (e.g. Armorslayer, Falchion)
Add Self Buffs Weapons (e.g. Blade Tomes, Laevatein, Exalted Falchion)
Add Enemy Debuffs Weapons (i.e. Blizzard)
Add Enemy Buffs Weapons (e.g. The Cleaner, Niu)
Stance Weapons (e.g. Berkut's Lance, Safeguard, Sack o' Gifts, Water Breath)
Attack Range-Sensitive Stance Skills (e.g. Blarserpent, Special Refined Ecksachs)
Blow Weapons (e.g. Durandal, Mjolnir, Coconut Bow)
Brazen Weapons(e.g. Sealed Falchion, Refined Folkvangr, Special Refined Ragnarok)
Push Weapons (e.g. Unrefined Ragnarok, Beloved Zofia, Deft Harpoon, Melon Crusher)
Dual Phase Stat Buffs (e.g. Gae Bolg, Special Refined Parthia)
In-Combat Debuff Weapons (e.g. Loptous Book of Dreams)
Shield Weapons (i.e. Breath of Blight)
Breaker Weapons (i.e. Assassin's Bow)
Follow-Up Manipulation Weapons(e.g. Armads, Hoarfrost Knife, Great Flame, Deathly Dagger)
Neutralize Bonus Weapons (e.g. Divine Naga, Casablanca, Special Refined Armorsmasher)
Enemy Health Check Weapons (e.g. Regal Blade, Ivaldi, Gliepnir)
Enemy Speed Check Weapons (e.g. Vassal's Blade, Giga Excalibur, Sylgr)
Enemy Def/Res Check Weapons (e.g. Light Brand, Shining Bow)
Enemy/Ally Presence Check Weapons, always active (e.g. Flame Siegmund, Swift Mulagir, Thunder Armads, Wolf Berg)
Bonus From Penalty Weapons (i.e. Demonic Breath)

Passives

Blow Skills (e.g. Death Blow, Darting Blow, Swift Sparrow)
Stance Skills (e.g. Darting Stance, Steady Stance)
Attack Range-Sensitive Stance Skills (e.g. Close Def, Distant Def)
Brazen Skills (e.g. Brazen Atk/Def, Brazen Atk/Spd)
Push Skills (i.e. Atk/Spd Push)
Solo Skills, always active (i.e. Atk/Res Solo)
Boost Skills (e.g. Fire Boost, Wind Boost)
Shield Skills (e.g. Svalinn's Shield, Iote's Shield, Grani's Shield, Dragonskin)
Laws of Sacae, always active
Guaranteed Follow-Up Skills (e.g. Quick Riposte, Bold Fighter, Follow-Up Ring, Brash Assault)
Follow-Up Prevention Skills (e.g. Wary Fighter, Windsweep, Watersweep)
Breaker Skills (e.g. Swordbreaker, Bowbreaker)
Neutralize Bonus Skills (e.g. Dull Ranged, Dull Melee)
Extra Attacks (i.e. Double Lion)
Staff Damage Modifier (i.e. Wrathful Staff, Mystic Boost)
Damage Nullification (i.e. Embla's Ward)
Phantom Speed [only in relation to other skills that affect targeting]

Other

Defense Tiles

Chart J: Combat Buffs and Effects That Do NOT Affect Chase Targeting

Less a chart, more a list of combat buffs and effects that have no effect on chase targeting.

Weapons

Owl Weapons (e.g. Gronnowl, Nidhogg, Reese's Tome)
Drive Sparrow Tomes (e.g. Muspell Fireposy, Nifl Frostflowers)
Bond Weapons (e.g. Lucina/Chrom Refined Falchion, Special Refined Fensalir, Special Refined Breath of Fog)
Session Weapons (i.e. Mirage Falchion)
Whitewing Sisters' Weapons (i.e. Whitewing Spear, Whitewing Sword, Whitewing Lance)
Special Cooldown Manipulating Weapons (as Special Activations are not accounted for)
Wo Dao Weapons (as Special Activations are not accounted for)
Post Combat Damage/Recoil (e.g. Deathly Dagger, Cursed Lance, Melon Crusher)
Post Combat Healing (e.g. Carrot Lance, Carrot Axe, Green Egg)
Drive Weapons (e.g. Marth's Special Refined Falchion, Lilith Floatie, Kadomatsu)
Hex Weapons (e.g. Special Refined Tharja's Hex)
Ally Presence+Stats/Status Check Weapons (e.g. Special Refined Sieglinde, Hunting Dagger)
Aegis Weapons (e.g. Divine Tyrfing, Thani, Special Refined Parthia)
Deflect Weapons (i.e. Urvan)

Passives

Bond Skills (e.g. Atk/Def Bond, Atk/Spd Bond)
Magic Blade Skills (e.g. Sorcery Blade, Inf. Hexblade)
Session Skills (e.g. Blade Session, Shield Session)
Post Combat Damage/Recoil (e.g. Fury, Poison Strike)
Post Combat Healing (i.e. Mystic Boost)
Spur Skills (e.g. Spur Atk, Spur Spd)
Drive Skills (e.g. Drive Def, Drive Res)
Goad/Ward Skills (e.g. Goad Cavalry, Ward Armors)
Special Cooldown Manipulating Skills (as Special Activations are not accounted for)
Range Sensitive Guard Skills (e.g. Close Guard, Distant Guard)
Deflect Skills (e.g. Deflect Melee, Deflect Magic, Deflect Missile)

Other

Ally Support (scales with distance between allies)