Elvish Elk-Rider

Luddite (Whenever an artifact is put into a graveyard from the battlefield for the first time each turn, untap this creature, or tap this creature and put a +1/+1 counter on it.)
Elvish Elk-Rider has Trample as long as it has
one +1/+1 counter on it.
Remove one +1/+1 counter from Elvish Elk-Rider: It gains +2/+2 until end of turn.