From Scrolls Wiki
Monstrous Brood - Spell
Ability: Creatures you control with the same name as target creature are sacrificed, and each replaced by a Monstrosity.
Flavor text: A second birth. A new life. More teeth.
Monstrosities summoned by casting Monstrous Brood are token creatures.
- Feb. 19th, 2015: Cost changed to 4 (from 5).
- Sep. 23rd, 2014: Can no longer target structures or opponent units.
- Sep. 17th, 2013: Added to the test server.