mtg ravnica cards Soul of · Magic 2015 (M15) #78 · Scryfall Magic: The Gathering Search Art by Jason Rainville Ravnica at War | War

While it normally provides the equipped creature with a +1/+1 counter whenever another creature dies if the equipped creature is a vampire, this number of counters gained this way is doubled, allowing for a single vampire to grow into a massive threat for a minimal cost.

You might even see this card appear in aggro-control strategies in other formats

$2.99 Equilibrium Exodus $1.99 Wall of Kelp Homelands $0.79 Steel Leaf Paladin Planeshift $4.99 Dust Elemental Planar Chaos $4.49 Ruination Stronghold $5.49 Aether Vial Darksteel $0.99 Wicked Pact Portal $0.99 Yosei, the Morning Star Modern Masters $7.99 Garruk Relentless Innistrad $3.99 Skull Collector Saviors of Kamigawa $2.49 Ach

Cards like Dictate of Erebos, Grave Pact, and Butcher of Malakir ensure any creature of ours that dies takes opposing bodies down with it