Time Walk

Fastbond

You may play any number of lands on each of your turns.
Whenever you play a land, if it wasn't the first land you played this turn, Fastbond deals 1 damage to you.

Mox Emerald

Hullbreacher

Flash
If an opponent would draw a card except the first one they draw in each of their draw steps, instead you create a Treasure token. (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Leovold, Emissary of Trest

Each opponent can't draw more than one card each turn.
Whenever you or a permanent you control becomes the target of a spell or ability an opponent controls, you may draw a card.

Ancestral Recall

Prophet of Kruphix

Untap all creatures and lands you control during each other player's untap step.
You may cast creature spells as though they had flash.

Mox Jet

Mox Sapphire

Tolarian Academy

{T}: Add {U} for each artifact you control.

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.