Sphere of Resistance [Kaladesh Inventions] Tribal Sorcery Tetravus enters the battlefield with

Tetravus enters the battlefield with three +1/+1 counters on it

if two Goblin Warriors and a Goblin Shaman are on the battlefield

If an effect would put one or more counters on a permanent you control

Enchanted land has indestructible and can't be enchanted by other Auras

it produces {B} instead of any other type and amount

Sphere of Resistance [Kaladesh Inventions] Tribal Sorcery Tetravus enters the battlefield withSet: Kaladesh Inventions Type: Artifact Rarity: Mythic Cost: {2} Spells cost {1} more to cast. "At the outset, we weren't aware of Chief Baral's motives for the project. It's now apparent that he intends to use the device to hamper the 'mages' among the ranks of the renegades." Consulate engineer's log