Avid Promoter

Haste, flash, ward 1
Changeling (This card is every creature type.)

Whenever a card is discarded, you may have Avid
Promoter deal 1 damage to you then, exile that card
with a 'G' counter on it. If this is done on an
opponent's turn, tap target creature.
{1}{r/w},{t}:Each player discards a card, then draws a
card.
{c},{ut}:Return Avid Promoter to your hand.