
Flying, deathtouch
Megamorph {5}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When this creature is turned face up, put a +1/+1 counter on each other Dragon creature you control.
Acid-Spewer Dragon has 1 printing, first in Dragons of Tarkir (2015). EDHREC ranks it #21,941 among Commander cards. It appears most in Sivitri, Dragon Master decks (198 on EDHREC). It has 3 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.