Battle at the Bridge | Sorcery | | Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Target creature gets -X/-X until end of turn. You gain X life. | Chris Rallis
Fatal Push | Instant | | Destroy target creature if it has mana value 2 or less.
Revolt — Destroy that creature if it has mana value 4 or less instead if a permanent you controlled left the battlefield this turn. | Eric Deschamps
Fourth Bridge Prowler | Creature | Human Rogue | When Fourth Bridge Prowler enters the battlefield, you may have target creature get -1/-1 until end of turn. | John Silva
Gonti's Machinations | Enchantment | | Whenever you lose life for the first time each turn, you get {E}. (You get an energy counter. Damage causes loss of life.)
Pay {E}{E}, Sacrifice Gonti's Machinations: Each opponent loses 3 life. You gain life equal to the life lost this way. | Daarken
Augmenting Automaton | Artifact Creature | Construct | {1}{B}: Augmenting Automaton gets +1/+1 until end of turn. | Jason Rainville