Wizened Elder

When Wizened Elder enters the battlefield, you may put a +1/+1 counter on another target Goblin creature.
{t}: Add {b}, {r}, or {g} to your mana pool. Activate this ability only if you control three or more Goblins.
{t}, Tap three untapped Goblins you control: Put
a +1/+1 counter on each Goblin creature you control.