Arowyn, Envoy of Beasts

Partner with Umorath, Ark of the Conclave
Reach
Other Elves you control get +1/+1.
{t}: Gain X life where X is the greatest toughness
among creatures you control.
{g},{t}: Add X {g} mana, where X is equal to
the amount of creature you control.
{1}{w}: Target creature gains lifelink this turn.
"When the Conclave beckoned...."