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
As Vineglimmer Snarl enters the battlefield, you may reveal a Forest or Island card from your hand. If you don't, Vineglimmer Snarl enters the battlefield tapped. {T}: Add {G} or {U}.
"It has strange properties, a Metebelis crystal. It can affect the mind." —The Third Doctor
Rose Tyler gets +1/+1 for each time counter on it. Bad Wolf — Whenever Rose Tyler attacks, put a time counter on it for each suspended card you own and each other permanent you control with a time counter on it. Doctor's companion
Negative — As long as K-9, Mark I is untapped, other legendary creatures you control have ward {1}. Affirmative — {1}{U}, {T}: Target legendary creature can't be blocked this turn. Doctor's companion
Menace At the beginning of your end step, create a 3/3 black Dalek artifact creature token with menace if an opponent lost 3 or more life this turn. Then each opponent who lost 3 or more life this turn faces a villainous choice — You draw a card, or that player discards a card.
When The Fugitive Doctor enters the battlefield, investigate. Whenever The Fugitive Doctor attacks, you may sacrifice a Clue. When you do, target instant or sorcery card in your graveyard gains flashback {2}{R}{G} until end of turn.
Body Thief — When you cast this spell, you may exile a creature you control and put a takeover counter on it. You may have The Master, Formed Anew enter the battlefield as a copy of a creature card in exile with a takeover counter on it.
Make Them Pay — Whenever a nontoken artifact creature you control dies, you may exile it. If you do, choose an opponent with the most life among your opponents. That player faces a villainous choice — They lose 4 life, or you create a token that's a copy of that card.
{T}: Target creature an opponent controls with power less than or equal to The Master's power gains skulk until end of turn. Goad it. Whenever a creature with skulk deals combat damage to one of your opponents, put a +1/+1 counter on The Master and draw a card.
Myriad The "legend rule" doesn't apply to creature tokens you control. Triggered abilities you control can't cause you to sacrifice or exile creature tokens you control.
Whenever another nonartifact creature dies, return it to the battlefield under your control face down and tapped. It's a 2/2 Cyberman artifact creature. At the beginning of your end step, each opponent faces a villainous choice — Each artifact creature you control deals 1 damage to that opponent, or you draw a card and chaos ensues.