Mirrorpool [Oath of the Gatewatch] Vedalken Knight it enters the battlefield as

it enters the battlefield as a copy of one of those cards with a number of additional +1/+1 counters on it equal to the power of the other card

Set: Mercadian Masques Type: Land Rarity: Common Sandstone Needle enters the battlefield tapped with two depletion counters on it

each defending player divides all creatures without flying they control into a "left" pile and a "right" pile

Set: Masters 25 Type: Enchantment Rarity: Rare Cost: {1}{W} At the beginning of each opponent's end step

" —Samuel Coleridge

Mirrorpool [Oath of the Gatewatch] Vedalken Knight it enters the battlefield asSet: Oath of the Gatewatch Type: Land Rarity: Mythic Mirrorpool 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.