Sucks MP with MagicDrain, then attacks with Pearl.
The Warlock is an enemy in Final Fantasy VI.
It often uses Magic Drain which functions identically to Osmose, and when alone always uses the powerful Holy ability, as well as casting it occasionally when accompanied by other enemies. Due to its high Magic Defense, physical attacks are advised against it. Since the Warlock always attacks with other enemies, it should be targeted first to avoid the risk posed by Holy.
If monster is by itself: Holy (100%)
1st Turn: Magic Drain (66%) or Nothing (33%)
2nd Turn: Magic Drain (66%) or Holy (33%)