mtg cards like drannith magistrate [11] [Ikoria: Lair of Behemoths] [Foil] – Face to Face Games Your opponents cant cast spells from anywhere other than their hands. Combo Knowledge Pool +Drannith Magistrate

There are a few decks that actual turn this rule into an exploitable advantage, using it as a free discard outlet to pitch giant creature cards to Reanimate next turn or a Dredge card such as Golgari Grave-Troll for subsequent self-milling, but in what I would call fair decks, this maximum hand size rule is not nice, especially when you are mana-screwed

Alchemy is one example, as you wont be able to play it on Magic Online or in paper

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No recent tournament decks are stored for this card yet

It repeatedly generates a blocker that can gain you life, which is HUGE since Poison often generates aggro