Thran Weaponry 135 (Urza's Legacy) - Foil Slime Sovereign if that spell's mana cost

if that spell's mana cost or that ability's activation cost contains {X}

if you spent 4 or more

Pride 3 [Class Bonus] Your champion and other slimes you control have spellshroud

if it doesn't have the same name as another creature you control or a creature card in your graveyard

Thran Weaponry 135 (Urza's Legacy) - Foil Slime Sovereign if that spell's mana costEcho {4} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) You may choose not to untap this artifact during your untap step. {2}, {T}: All creatures get +2 +2 for as long as this artifact remains tapped.