Helotry (5e Spell)
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By maintaining touch with an ally, they are able to cast your spells (using your spell slots and spellcasting modifier). They must use their own components but if you have a focus it can be used. The caster can continue to act normally after casting this spell. When either the caster or receiver is disrupted by any interaction that would break a concentration, this spell's effects end.
At Higher Levels. When you cast this spell using a spell slot of 6th level or higher, this spell can target 2 more allies per level above 5th (Touch range can chain)