Armament of Nyx

Enchantment — Aura

Enchant creature

Enchanted creature has double strike as long as it's an enchantment. Otherwise, prevent all damage that would be dealt by enchanted creature. (A creature with double strike deals both first-strike and regular combat damage.)

Slawomir Maniak

Legalities

NOT LEGALStandard
LEGALPioneer
LEGALModern
LEGALLegacy
LEGALVintage
LEGALCommander
LEGALOathbreaker
NOT LEGALAlchemy
NOT LEGALHistoric
NOT LEGALBrawl
NOT LEGALTimeless
LEGALPauper
LEGALPenny