Wendlyn, Land of the Fae

Wendlyn, Land of the Fae enters the battlefield tapped
{t} : Add a {u}, {b}, or {r} mana to your mana pool
{b/r}{u/b}{u/r}{t} : Create 3 2/1 black, red, and blue Fae warrior creature tokens with first strike
{u}{u}{u}{u}{b}{b}{b}{r}{r}{t} : destroy all nonland permanents target player controls