Durin, the Deathless

You may cast Durin, the Deathless from your graveyard or from exile.
When Durin, the Deathless leaves the battlefield,
put a perpetual +1/+1 counter on this card.
When Durin, the Deathless enters the battlefield,
create X 1/1 red Dwarf warrior honor guard
creature tokens, where X is equal to Durin,
the Deathless' power.