Chromium

Legendary Creature — Elder Dragon — {2}{W}{W}{U}{U}{B}{B}

Flying
Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)
At the beginning of your upkeep, sacrifice Chromium unless you pay {W}{U}{B}.

Rarity: rare

EDHREC rank: 24352