FEEBLE FLAP

This cannot die if the opponent controls any creatures.
{t} Discard a card, draw a card
{t}{r/w}{r/w}{r/w} Exile 2 target lands.
{t}{e}{e}{e} this gets +1+1 for each enchantment in play.
When this dies, if your opponent controls a planeswalker, put into your hand then create 3 0/1 feeble flaps that are copies of this.