Scars of Mirrodin

Metalcraft — Chrome Steed gets +2/+2 as long as you control three or more artifacts.

Chimeric Mass enters the battlefield with X charge counters on it. {1}: Until end of turn, Chimeric Mass becomes a Construct artifact creature wit...

Equipped creature has flying and first strike. Equip {2}

Equipped creature gets +4/-1. Equip {2}

{W}, Sacrifice Auriok Replica: Prevent all damage a source of your choice would deal to you this turn.

Equipped creature gets +6/+6. Whenever equipped creature attacks, destroy target permanent. Equip {6}

Equipped creature gets +0/+3 and has vigilance. (Attacking doesn't cause it to tap.) Equip {3} ({3}: Attach to target creature you control. Equip ...

Lifelink

Deathtouch

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

Seachrome Coast enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {W} or {U}.

{3}, {T}: Create a token that's a copy of Myr Propagator.

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {G}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {R}.)

({T}: Add {B}.)

({T}: Add {B}.)