Micolash Host of the Nightmare

If Micolash, Host of the Nightmare fights or blocks another creature, at the end of combat, return it to your hand, keeping its damage and reducing by {1} its cost.
When Micolash leaves the battlefield this way, create X 1/1 Skeletal Puppet creature tokens, where X is Micolash’s toughness before he was returned to your hand.

Instant — You may exile an artifact, sorcery, enchantment, land, or instant card from your hand: Micolash gains X Insight and Mindbreak until end of turn, where X is the exile