CardName: Addiction
Cost: 3b
Type: Creature - Incarnation
Pow/Tgh: 2/4
Rules Text: At the beginning of each opponent's end step, they lose 2
life for each untapped permanent they control with {t} in
the cost
Flavour Text:
Set/Rarity: Multiverse Design Challenge None
Addiction
Creature – Incarnation
At the beginning of each opponent's end step, they lose 2 life for each untapped permanent they control with in the cost
See Challenge # 156.
That's a strong punisher, and very flavorful. It reminds me of Stoneshaker Shaman.