The Zassacre Zirl (Unknown Event #RB06)

The Zassacre Zirl {5}{B}{B}

Legendary Creature — Human Assassin

When The Zassacre Zirl enters the battlefield, if you cast them, destroy target commander an opponent controls. If its owner has two or more commanders, that card stops being a commander.

When another Commander dies, draw a card.

4/4
Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny