Aldarc
Legend
I would also argue that Spellthief is lackluster as the subclass "capstone" for Arcane Tricksters. I get the idea. It's flavorful and cute. It's a Magical Rogue, so it gets a Spell Thief. Clever. But it somewhat feels dissociated from rest of the abilities that the Arcane Trickster get, which entail having magic enhance their rogue abilities (mage hand legerdemain, mage hand grants advantage on attacks: i.e., sneak attack) or their rogue qualities enhance their magic (e.g. hiding grants advantage on spell saving throws). Many of the other rogues get an ability that greatly improves their combat output, sneak attack, or kill factor at 17th level. Arcane Trickster? You may get a low level spell you don't otherwise know if the targeted caster doesn't make the save using its spellcasting stat. Meh.
I think that I would prefer that Arcane Tricksters gain the ability at 17th level to apply sneak attack damage to any spell requiring an attack roll and not just the ones that incorporate weapon attacks (e.g. booming blade, greenflame, etc.). This makes the Arcane Trickster more similar to past editions.
I think that I would prefer that Arcane Tricksters gain the ability at 17th level to apply sneak attack damage to any spell requiring an attack roll and not just the ones that incorporate weapon attacks (e.g. booming blade, greenflame, etc.). This makes the Arcane Trickster more similar to past editions.