Shes a sacrifice engine, she can dish out significant damage, and shes a treasure engine
This is because prowess only checks if the spell isnt a creature, not what else it actually is
While the bard has only one ability and it takes up the whole text box, its a doozy
Granting Menace to the team on EtB is potent, and having a built-in way to bring it back to play means you can keep reusing the combat trick while ensuring the buff is never far away
Anavolver Battlefield Forge Bloodfire Colossus Caves of Koilos Cetavolver Cromat Death Grasp Degavolver Desolation Angel Desolation Giant False Dawn Fervent Charge Fungal Shambler Gerrard Capashen Goblin Trenches Guided Passage Ice Cave Kavu Mauler Last Stand Legacy Weapon Lightning Angel Llanowar Wastes Mask of Intolerance Mystic Snake Necravolver Overgrown Estate Penumbra Wurm Pernicious Deed Phyrexian Arena Planar Despair Powerstone Minefield Prophetic Bolt Rakavolver Shivan Reef Spectral Lynx Spiritmonger Suffocating Blast Symbiotic Deployment Unnatural Selection Vindicate Whirlpool Warrior Wild Research Yavimaya Coast Yavimaya's Embrace
Serras Blessing is a simple enchantment that does it, although for the same exact cost, Brave the Sands also lets your creatures block an additional creature each combat