Colosseum Ruins

Colosseum Ruins enters the battlefield tapped
with 3 monster counter on it.
{2}, {t}: Put a monster counter on Colosseum
Ruins.
{r}, {t}, Remove a monster counter from
Colosseum Ruins: Create a 1/1 red goblin
creature token.
{2}, {t}, Remove three monster counters from Colosseum Ruins: Create a 4/4 red Centaur
creature token.