There are only a handful of ways to remove specific cards from your opponents deck, most of which are known by the slang term capping or surgical-ing. These come from Jester's Cap and Surgical Extraction, though there are a few other cards that are similar
Ein Dolch steckt in einer Tarotkarte, sein Zwilling in der Toten
In addition, if you decide to hold out for the big guns, it can wipe away that Isperia, Supreme Judge or gigantic Lotleth Troll your opponent has
Even if it does eat a removal spell a few turns later, its often too late
Both sets are based on the Fallout game series, which recently received a live-action television adaptation via Prime Video
The teammate may also activate Spell Speed 2 or higher effects (as if it was an opponents turn)