This is a static ability, and works no matter zone the source is in
Turns with Urza can be explosive, and even a "weaker" Urza deck is still stronger than a lot of decks
It's a removal spell dedicated to lifegain decks, the same way you might consider Drag to the Roots in a dedicated delirium deck
Threads of Disloyalty If youre unfamiliar with Threads of Disloyalty, or are even think about writing this card off, just go watch Shaun McLarens run in the Top 8 of Pro Tour Born of the Gods
Advanced Search Sets Random Syntax Alloy Myr Alpha Myr Brass Squire Copper Myr Coretapper Darksteel Myr Frogmyr Enforcer Gold Myr Hovermyr Ichorclaw Myr Iron Myr Knighted Myr Leaden Myr Lodestone Myr Myr Adapter Myr Battlesphere Myr Convert Myr Custodian Myr Enforcer Myr Galvanizer Myr Kinsmith Myr Landshaper Myr Mindservant Myr Moonvessel Myr Propagator Myr Prototype Myr Quadropod Myr Retriever Myr Scrapling Myr Servitor Myr Sire Myr Superion Myr Welder Omega Myr Palladium Myr Parcel Myr Perilous Myr Plague Myr Sarcomite Myr Shimmer Myr Silver Myr Suntouched Myr Urtet, Remnant of Memnarch
Of course, even if they didn't do better, there's no reason I can't pick up a paint brush and try my hand at painting over the card to make it look nice
