Magewright's Stone [Mystery Booster] Teferi and permanents are the chosen

and permanents are the chosen color in addition to their other colors

Set: War of the Spark Type: Legendary Planeswalker — Bolas Rarity: Mythic Cost: {U}{B}{B}{B}{R} Nicol Bolas

Now it burns in my mind

creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud

Return it to the battlefield tapped under its owner's control at the beginning of the next end step

Magewright's Stone [Mystery Booster] Teferi and permanents are the chosenSet: Mystery Booster Type: Artifact Rarity: Uncommon Cost: {2} {1}, {T}: Untap target creature that has an activated ability with {T} in its cost. The stones hark back to an age before civilization, when the living earth blessed all who trod its untamed wilds.