[quote=supertinyking]
Rubick teleports to Jebb while stealing his last spell and using telekinisis to throw Jebb's swords into the dome.
[/quote]

His last spell was still teleportation, which he used to appear in the dome. A new sword is instantly in his hand, and he stabs Rubick in the abdomen, attacking with rapid, practised swings, which Rubick can't dodge in this cramped environment
Jebb: Surrender now, or I'll have to finish you!