Mirrodin

When Rustspore Ram enters the battlefield, destroy target Equipment.

Flying Whenever Slith Ascendant deals combat damage to a player, put a +1/+1 counter on it.

{1}{B}: Regenerate Pewter Golem.

Pentavus enters the battlefield with five +1/+1 counters on it. {1}, Remove a +1/+1 counter from Pentavus: Create a 1/1 colorless Pentavite artifac...

{2}{B}, Sacrifice Nim Replica: Target creature gets -1/-1 until end of turn.

Flying, first strike (This creature can't be blocked except by creatures with flying or reach, and it deals combat damage before creatures without ...

Flash Protection from artifacts

{2}, {T}: Shuffle your library.

Myr Adapter gets +1/+1 for each Equipment attached to it.

As long as Skyhunter Cub is equipped, it gets +1/+1 and has flying.

Imprint — When Mirror Golem enters the battlefield, you may exile target card from a graveyard. Mirror Golem has protection from each of the exiled...

{1}{G}: Malachite Golem gains trample until end of turn.

{1}{R}: Hematite Golem gets +2/+0 until end of turn.

Goblin War Wagon doesn't untap during your untap step. At the beginning of your upkeep, you may pay {2}. If you do, untap Goblin War Wagon.

{3}{R}, Sacrifice Goblin Replica: Destroy target artifact.

Flying Goblin Dirigible doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap Goblin Dirigible.

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

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

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

Trample Clockwork Vorrac enters the battlefield with four +1/+1 counters on it. Whenever Clockwork Vorrac attacks or blocks, remove a +1/+1 counter...

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 ...