MTG

Equipped creature gets +1/+1 and is an artifact in addition to its other types. Equip {2}

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.) Signal Pest can't be blocked except by cr...

Shriekhorn enters the battlefield with three charge counters on it. {T}, Remove a charge counter from Shriekhorn: Target player mills two cards.

{2}{B}: Dross Ripper gets +1/+1 until end of turn.

{4}, {T}: Target opponent loses 2 life, gets a poison counter, then mills six cards.

Indestructible Equipped creature has indestructible. Equip {2}

Create two 1/1 colorless Myr artifact creature tokens.

Flash You may cast artifact spells as though they had flash.

Sacrifice an artifact: Regenerate Rusted Slasher.

Metalcraft — Razorfield Rhino gets +2/+2 as long as you control three or more artifacts.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) {T}: Add {C}.

When Piston Sledge enters the battlefield, attach it to target creature you control. Equipped creature gets +3/+1. Equip—Sacrifice an artifact.

Whenever another artifact is put into a graveyard from the battlefield, Magnetic Mine deals 2 damage to that artifact's controller.

Flying

Imprint — When Knowledge Pool enters the battlefield, each player exiles the top three cards of their library. Whenever a player casts a spell from...

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When Core Prowler die...

Equipped creature gets +2/+2 and can't block. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

{T}: Attach target Equipment you control to target creature you control.

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Phyrexian Germ creature token, then attach this to it.) Equipped crea...

When Leonin Relic-Warder enters the battlefield, you may exile target artifact or enchantment. When Leonin Relic-Warder leaves the battlefield, re...

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

(A player with ten or more poison counters loses the game.)