Rothga, Bonded Engulfer
Legendary Creature — Phyrexian Beast, {2}{G}{G}
Oracle Text
Trample
When Rothga, Bonded Engulfer enters, you get a one-time boon with "When you cast a creature spell, it perpetually gets +X/+X, where X is its power."
Legendary Creature — Phyrexian Beast, {2}{G}{G}