Powerstone Shard

(T: Add W.)

+1: Reveal the top two cards of your library. An opponent chooses one of them. Put that card into your hand and exile the other with a silver counter on it. −1: Put a card you own with a silver counter on it from exile into your hand. −2: Create a 0/0 colorless Construct artifact creature token with "This token gets +1/+1 for each artifact you control."

Target creature gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Flying

Vigilance Creatures can't attack you or planeswalkers you control unless their controller pays 1 for each of those creatures.

This creature gets +1/+0 for each legendary creature you control.

Other creatures you control get +1/+1.

Exile target creature or enchantment.