The bigger strategy is to fill your battlefield with ninjas to halve an opponents life total with the combat damage trigger
It is a 0/3 with defender, but can tap itself to deal one damage to each opponent
Mono Black Fun Stuff Creature (28) 1x Avatar of Woe 1x Bloodgift Demon 1x Butcher of Malakir 1x Chainer, Dementia Master 1x Creepy Doll 1x Dark Impostor 1x Drana, Kalastria Bloodchief 1x Gatekeeper of Malakir 1x Geth, Lord of the Vault 1x Grave Titan 1x Guul Draz Assassin 1x Harvester of Souls 1x Kiku, Night's Flower 1x Magus of the Coffers 1x Mikaeus, the Unhallowed 1x Mindslicer 1x Mirri the Cursed 1x Necropolis Regent 1x Necrotic Ooze 1x Nirkana Revenant 1x Ob Nixilis, the Fallen 1x Phyrexian Obliterator 1x Royal Assassin 1x Rune-Scarred Demon 1x Sepulchral Primordial 1x Sheoldred, Whispering One 1x Shield Sphere 1x Xathrid Gorgon Planeswalker (3) Land (33) Enchantment (7) 1x Bad Moon 1x Contamination 1x Grave Betrayal 1x Grave Pact 1x No Mercy 1x Painful Quandary 1x Underworld Connections Artifact (9) 1x Caged Sun 1x Candles of Leng 1x Cellar Door 1x Grimoire of the Dead 1x Jet Medallion 1x Journeyer's Kite 1x Paradise Plume 1x Sol Ring 1x Staff of Nin
For the low, low cost of one card, you get to attack again, draw a card, and use all of your mana a second time, plus get a crack at additional upkeep/end step triggered abilities and all that good stuff
