infinite mana plus flying

Enchant creature Enchanted creature gets +2/+2 and has flying and vigilance. (Attacking doesn't cause it to tap.)

: Add an amount of equal to this creature's power.

Equipped creature has ", : This creature gets +2/+2 until end of turn." ( is the untap symbol.) Equip

You don't lose unspent green mana as steps and phases end. Omnath gets +1/+1 for each unspent green mana you have.