As an additional cost to cast this spell, reveal a colorless creature card from your hand.
Exile each creature and planeswalker with mana value less than the revealed card's mana value.
Mana cost
4
C
C
Mana value
6
Printings
From
$4.12
EDHREC rank
#4628
Buy
Formats
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
28 Jul 2023
The colorless creature card stays revealed until Calamity of the Titans leaves the stack.
28 Jul 2023
The colorless creature card you reveal doesn't have to still be in your hand as Calamity of the Titans resolves. If it's not, use its mana value as it last existed in your hand.