Continents of Aether

Continents of Aether enters the battlefield with
5 magic counters on it.
{t}, {u}{g}: Add two mana of any one colour.
Remove a magic counter from Continents
of Aether.
When Continents of Aether has no magic
counters on it, each opponent exiles all lands and
creatures with mana abilities they control. Exile
Continents of Aether.