Vraska, Master Pirate

: Whenever a Treasure token enters the battlefield under your control, create a green and black 1/1 Serpent token creature with Deathtouch.
+2: Put the top card of your library into your graveyard. If it was a land or enchantment create a Treasure token.
-3: Destroy target tapped creature. If it had power or toughness less than 4, create X Treasure tokens where X is that creature's converted mana cost