
Desecration Demon | Creature | Demon | Flying
At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it. | Jason Chan

Deadbridge Goliath | Creature | Insect | Scavenge {4}{G}{G} ({4}{G}{G}, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.) | Chase Stone

Corpsejack Menace | Creature | Fungus | If one or more +1/+1 counters would be put on a creature you control, twice that many +1/+1 counters are put on it instead. | Chris Rahn

Volatile Rig | Artifact Creature | Construct | Trample
Volatile Rig attacks each combat if able.
Whenever Volatile Rig is dealt damage, flip a coin. If you lose the flip, sacrifice Volatile Rig.
When Volatile Rig dies, flip a coin. If you lose the flip, it deals 4 damage to each creature and each player. | Mathias Kollros