Mirrodin

{T}: Add three mana of any one color.

At the beginning of each player's upkeep, that player reveals the top card of their library. If it's an artifact, creature, enchantment, or land ca...

Flash {3}, {T}: Untap target artifact.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

Equipped creature has double strike. (It deals both first-strike and regular combat damage.) Equip {2} ({2}: Attach to target creature you control....

Whenever a source an opponent controls deals damage to you, if Farsight Mask is untapped, you may draw a card.

Target permanent you control gains protection from artifacts or from the color of your choice until end of turn.

Imprint — When Extraplanar Lens enters the battlefield, you may exile target land you control. Whenever a land with the same name as the exiled car...

Equipped creature gets +1/+1 for each card in your hand. Equip {2}

{1}{G}, Sacrifice Elf Replica: Destroy target enchantment.

Whenever Duskworker becomes blocked, regenerate it. {3}: Duskworker gets +1/+0 until end of turn.

Imprint — When Duplicant enters the battlefield, you may exile target nontoken creature. As long as a card exiled with Duplicant is a creature car...

Whenever Dross Scorpion or another artifact creature dies, you may untap target artifact.

{3}, {T}: Put a +1/+1 counter on target creature.

Whenever equipped creature blocks or becomes blocked by a creature, destroy both creatures. Equip {2} ({2}: Attach to target creature you control. ...

Activated abilities of artifacts and creatures can't be activated unless they're mana abilities.

At the beginning of your upkeep, destroy target nonland permanent with the lowest mana value. (If two or more permanents are tied for lowest, targe...

Create two 1/1 white Soldier creature tokens.

{3}, {T} or {U}, {T}: Return target creature to its owner's hand unless its controller pays {1}.

{T}: Add {G}.

{1}{U}: Cobalt Golem gains flying until end of turn.

Flying Clockwork Dragon enters the battlefield with six +1/+1 counters on it. Whenever Clockwork Dragon attacks or blocks, remove a +1/+1 counter f...

Flying Clockwork Condor enters the battlefield with three +1/+1 counters on it. Whenever Clockwork Condor attacks or blocks, remove a +1/+1 counter...

Clockwork Beetle enters the battlefield with two +1/+1 counters on it. Whenever Clockwork Beetle attacks or blocks, remove a +1/+1 counter from it ...