Green Dragon Zord

Flying
{2}: Green Dragon Zord gets +1/+0 until end
of turn.
{x}: Destroy each nonland permanent with
converted mana cost X whose controller was
dealt combat damage by Green Dragon Zord
this turn. Activate this ability only once each
turn.
His master's song summons him from the depths below.
Oceans break and cities quake upon his
return to the earth.