Iona, Shield of Emeria - Zendikar (ZEN)Flying As Iona, Shield of Emeria enters the battlefield, choose a color. Your opponents can't cast spells of the chosen color. No more shall the righteous cower before evil.

Demonstrate (When you cast this spell

) {T}: Add {C}

She now hears only Emrakul's murmurs

Vigilance {1}

but first you must believe

the Dire attacks

Nothing going to mess with us

untap all creatures you control

each opponent may put any number of artifact

Each friend searches their library for a land card

Metalcraft — Etched Champion has protection from all colors as long as you control three or more artifacts

You may pay {W} to end this effect