SubTwin

SubTwin is the spawned copy created by the Twin elite buff. It has 50% of the original enemy's maximum health and is scaled down to 75% size. SubTwin does not spawn its own twin, preventing an infinite chain of duplicates. It otherwise retains all of the base enemy's abilities, stats, and attack patterns, making it a fully functional combatant despite its reduced health pool.

SubTwin copies are deceptively dangerous because they still deal full damage despite their smaller health pool. When an already-threatening enemy spawns with Twin and produces a SubTwin, you are effectively fighting 1.5x the enemy instead of 1x, since both halves still attack every turn. SubTwins of enemies with area-of-effect abilities are particularly nasty because both copies can blanket the battlefield with overlapping damage zones.

The best approach to SubTwins is to focus fire one copy down quickly before splitting damage between both. Since SubTwins have only 50% health, they are the easier kill target and reducing the fight to a single enemy as fast as possible limits total incoming damage. Area-of-effect abilities that can hit both the Twin and SubTwin simultaneously are extremely efficient here. Avoid wasting single-target burst on the SubTwin if the original Twin is already low, since killing either one reduces the threat equally.