HC Efficacy Reduction

HC Efficacy Reduction is a debuff that reduces the amount of HP healed from collected Heart Crystals (HC). These debuff effects stack subtractively with other HC Efficacy effects, such as from Leader Skills, Extra Skills, Spheres, Elgifs and SP Enhancements.
Its opposite counterpart is HC Efficacy.
==Formula==
Amount Healed = Total REC * (100% + HC Effectiveness Multiplier) / RandomBetween(3.0, 4.2)
==Mechanics==
For every HC obtained, HC Efficacy Reduction heals less HP.
For example, Lord-type max-leveled Kaiser Glowy is afflicted with Grand Mitrailleur Serin's HC effectiveness reduction debuff on her SP-enhanced SBB.
*Assuming no imps were fused, Kaiser Glowy’s Rec stat is 907.
*Without Serin's debuff active, Kaiser Glowy will heal anywhere between 215~302 HP.
*With Serin's debuff active, Kaiser Glowy will heal anywhere between 151~212 HP.
==Negating HC Efficacy Reduction==
Dual Brave Burst effects with Elemental Synergy: Radiance can negate HC Efficacy Reduction effects, as well as Max HP Reduction effects. Probabilities and buff durations are listed below.
Bond Levels	Probability	Buff Duration
1 	60% 	3 turns
2 	70% 	3 turns
3~4 	80% 	3 turns
5 	90% 	3 turns
6 	90% 	4 turns
7 	100% 	4 turns
8~10 	100% 	5 turns
==In-Game Descriptions==
Buff 	Namespaced ID 	In-Game Description
HCHeal	DESC_HC_HEAL_REDUCE	HC heal reduced.
==Relevant Links==
*List of Units with Max HP & Heal Reduction Effects