In the Dungeons & Dragons multiverse, almost every magic spell requires the caster to be able to speak and move their hands. There are some spells that can be cast without their verbal component, allowing the caster to still use magic, even while gagged, or under the effects of a silence spell. One of the most effective methods in D&D for dealing with spellcasters is the silence spell, as it shuts down the ability to use most spells.
Spellcasters in D&D wield incredible powers that allow them to match the might of dragons. This power comes with restrictions, such as getting the drop on a spellcaster and holding their arms, which drastically reduces the number of spells they can use. That's why spellcasters need their meat shield and healer friends around, otherwise, their adventure would end in a single round of MMA-style combat. Technically, the Grappled and Restrained conditions don't outright state that spellcasting is impossible, but it's ambiguous.
Related: D&D: Fictional Languages You Can Use In A Campaign
D&D principal rules designer <a href=«https://twitter.com/JeremyECrawford?ref_src=» https: screenrant.com target="_blank" rel=«noopener noreferrer»>Jeremy Crawford
stated on Twitter that these conditions only affect spells if the caster's hands are bound, which leaves a lot of wiggle room for the DM. The best way to stop one of D&D's powerful enemy spellcasters is by preventing them from talking, but this is often easier said than done. A spellcaster doesn't rise through the levels by being stupid, which is why many of them protect themselves with defensive magic, or with waves of minions. If the spellcaster can be silenced, then their power decreases dramatically, as they will lose access to most of their
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