Gem of Haste (Bug)

I have a Gem of Haste, it has the ability it has “Casts on Extra Target” as well as Change to Cast when Hit

If the “Extra Target” is the caster, it puts them back at the top of the Action queue, then skips their turn.

I would imagine this is intended, else you could just cast it on yourself with mend + use life to cast + any trait that deals damage at the start of your turn -> must win. Its still quite abusable though imo, just do the same with 2 casters instead of one, casting it on one another.

Havent tried it to see if it works, but this was my first thought when I saw this spellgem: “ouch, that seems like a hard spell to balance”.