Mirrorpool - [Foil] Oath of the Gatewatch (OGW) MM2 time is measured not by

time is measured not by sand but by blood

That creature must be blocked this combat if able

put it onto the battlefield instead of putting it into your graveyard

You gain control of that creature for as long as it has a shield counter on it

choose a counter on a permanent you control

Mirrorpool - [Foil] Oath of the Gatewatch (OGW) MM2 time is measured not byMirrorpool enters the battlefield tapped. {T}: Add {C}. {2}{C}, {T}, Sacrifice Mirrorpool: Copy target instant or sorcery spell you control. You may choose new targets for the copy. {4}{C}, {T}, Sacrifice Mirrorpool: Create a token that's a copy of target creature you control.