Sunken Hollow (Surge Foil) [Doctor Who] Dog Soldier then banish the top card

then banish the top card of their deck

you may create a token that's a copy of Mirror-Sigil Sergeant

Using other cards as clues

Tap two untapped creatures you control: Reveal a card from your hand or the top card of your library

Sunken Hollow (Surge Foil) [Doctor Who] Dog Soldier then banish the top cardSet: Doctor Who Type: Land Island Swamp Rarity: Rare ({T}: Add {U} or {B}.) Sunken Hollow enters the battlefield tapped unless you control two or more basic lands. "So, we are fighting an unknown homicidal force that has taken the form of your commanding officer and a cowardly alien, underwater, in a nuclear reactor. Anything else I should know?" The Twelfth Doctor