Elrond, Healer of Wounds

Lifelink
This spell costs {4} less to cast, if you gained life this turn.
Whenever you gain life, you get that many lives, plus two.
Whenever you gain life, put a +1/+1 counter
on Elrond, and draw a card.
{4},{t}: Tap a creature you control, gain life equal to the damage it was dealt this turn.