Devour 3
(As this object enters, you may sacrifice any number of creatures. This permanent enters with three +1/+1 counter(s) on it for each creature sacrificed this way.)
When Ravenous Gigantotherium enters the battlefield, it deals X damage divided as you choose among up to X target creatures, where X is its power. Each of those creatures deals damage equal to its power to Ravenous Gigantotherium.