Urabrask's Assualt

Until the end of turn, target opponent can't cast spells or activate abilities. All permanents they control phase out. (While they're phased out, they're treated as though they don't exist. They phase in before his or hers next untap step.)
Exile Urabrask's Assualt.
Just as Teferi had his own way of protecting Zhalfir, Urabrask also had a trick up his metaphorical sleeve.