Imperian Ambush

Create 3 black 2/2 Imperianite creature tokens with Conqueror and: "This creature takes combat damage
in the form of -1 -1 counters."

At the beginning of your next upkeep, you may
pay {2}. If you don't, sacrifice all Imperianite creature tokens
you control.

"They're fearless little killing machines alright, but eventually, their ashy armor starts to break down."