Abilities of creatures and other permanents on the battlefield usually fall into one of three categories: static abilities, triggered abilities, and activated abilities
Lets take a short break from discussing MtG Proxy cards, and instead talk about MtG Arena for a moment
You used to be able to run it on your turn to pump your stuff in the front, and then tap it, which turned it off

SIDEBOARD GUIDE MONO GREEN: Out: 1xCling to Dust, 2xCensor, 1xKaya, Orzhov Usurper, 3xWandering Emperor 1xSupreme Verdict In: 3xAether Gust, 3xThoughtseize, 1xDovins Veto, 1xGo Blank On the draw: -2 Power Word Kill, +2 Portable Hole BR MIDRANGE: Out: 1xKaya, Orzhov Usurper, 2xAbsorb, 1xBloodchiefs Thirst, 1xSupreme Verdict, 1xPlains In: 3xAether Gust, 3xGo Blank UW CONTROL: Out: 4xFatal Push, 2xPower Word Kill, 3xSupreme Verdict In: 2xMalevolent Hermit, 3xGo Blank, 3xThoughtseize, 1xDovins Veto IZZET PHOENIX: Out: 1xBloodchiefs Thirst, 1xFatal push, 3xSupreme Verdict, 4xThe Wandering Emperor In: 2xMalevolent Hermit, 3xGo Blank, 3xThoughtseize, 1xDovins Veto SPRITS: Out: 1xCling to Dust, 2xDovins Veto, 2xAbsorb, 1xKaya, Orzhov Usurper, 1xTeferi, Hero of Dominaria In: 2xMalevolent Hermit, 2xPortable Hole, 3xThoughtseize RW HEROIC: Out: 1xCling to Dust, 4xAbsorb, 2xCensor, 1xMemory Deluge In: 3xAether gust, 3xThoughtseize, 2xPortable Hole Well thats it for me, folks

Based on the number of events held and the two age groups participating, it is believed that there are only 14 examples of this card in existence.This example presents beautifully, with excellent color and surfaces