Teenage Mutant Ninja Turtles

Land

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {W} or {B}.

Foot Headquarters

Assassin's Creed

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast an Assassin spell or a spell that has freerunning, or to activate an ability of an Assassin source.

Brotherhood Headquarters

Doctor Who

Soldier

Plane — Earth

When you planeswalk to UNIT Headquarters and at the beginning of your upkeep, create a tapped 1/1 white Soldier creature token.
Whenever chaos ensues, put a +1/+1 counter on each creature you control.

UNIT Headquarters

Card

Spara's Headquarters

New Capenna Art Series

Streets of New Capenna Promos

Land — Forest Plains Island

({T}: Add {G}, {W}, or {U}.)
This land enters tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)