Jarlheim Forerunner

Relentless (If this creature would be destroyed, you
may discard a card and it isn't. Instead remove all
damage from it and sacrifice it at the beginning of the
next end step.)
{2}{g}{w}: Return Jarlheim Forerunner from your graveyard to the battlefield. Then create a 2/2
green Wolf creature token. Activate only if you
control a legendary creature.