Tithon-Lur, Torchbearer

Double strike, vigilance
Whenever a source you control deals
damage to a creature or planeswalker, it can
deal excess damage to that permenent's
controller, and Tithon-Lur deals 3 damage
to that player.
{r/w}: Tithon-Lur deals 1 damage to target
creature or planeswalker and you
gain 1 life.