Revifify... Heroes' Feast
https://www.reddit.com/r/DnD/comments/d419va/how_are_you_supposed_to_manage_spell_costs_in_5e/
Basically, the whole argument comes down to the following steps:
- If a spell has verbal (V) components, you must be able to speak audibly/loudly.
- If a spell has somatic (S) components, you need a free hand to cast a spell
- If you're casting a spell that has material (M) components, you need to provide those material components or hold a focus (these components can be in your free hand).
"bloodwell vial wearing" Google https://www.dndbeyond.com/forums/dungeons-dragons-discussion/rules-game-mechanics/115550-what-does-it-mean-to-use-spell-foci-that-are-worn
Tasha's Cauldron of Everything New Caster/Magic Items http://dnd5e.wikidot.com/wondrous-items:tce https://rpg.stackexchange.com/questions/174399/do-you-need-a-free-hand-for-your-holy-symbol-if-youre-wearing-it-visibly
From Justin:
Because the argument is you’re wearing the focus. And it says you can use the focus if you’re wearing it… and you’re holding say 2 daggers, can you cast the VM spell?… I’d say yes, but not VMS. Because you’re not holding the focus, so you can’t do the S part with the hand holding the material because there is no hand holding the material. And your hands are full.
For the sake of the argument, I'd let you throw a light weapon in the air so you could briefly touch a different item if you really wanted to.
It's just like how any sane DM will allow someone who's holding a two-handed weapon (or more importantly, a versatile weapon) to let go of the weapon with one hand to perform somatic components of a spell.