That's a Big Friggin' Frog

({p/g}; you may pay two life instead of a forest)
Choose one;
•Target frog creature gets trample and +4/+4
until end of turn
• Create a 10/10 frog behemoth with haste, trample,
and decay (can't block, destroyed after attacking)
- It just came out of no-where! 500 tons of fat frog slammed right down on our battalion and wiped
them all out! And then he just hopped away . . .
— Mountain Crest Militia Soldier