Leprechaun, Gold-Cursed Fae

Skulk (This creature can't be blocked by creatures with greater power.)

Goldlust: Whenever a creature dies, create a Treasure token.

Curse of Gold: At the beginning of your end step, if you control five or more Treasure tokens, you may pay B. If you do, destroy target creature.

"Take my gold? I'll take your soul." - The Leprechaun