Search your library for a basic land card, put it into the battlefield tapped, then shuffle. If this spell's flashback cost was paid, search your library for a land card rather than a basic land card. Flashback—{G}, Sacrifice a land.
Amity — Whenever you attack with Growing Gecko and exactly one other creature, they both get +1/+1 until end of turn. When Growing Gecko deals combat damage to a player this combat, you may transform it.
Target creature you control deals damage equal to its power to target creature. If this spell's flashback cost was paid, it deals that much damage to target player instead. Flashback {4}{R}
{T}, Sacrifice a creature: Until the end of your next turn, if you would lose unspent mana, that mana becomes colorless instead. {2}: Add one mana of any color.