Please don't. I would rather have negative effects that do not lead to instant reload and can be mitigated with strategic play. There is a huge difference between summoning a mephit (or even casting a fireball, though the current setting on fire is a better idea) and summoning a powerful creature such as a nabasu by a low level party.
That wasn't an instant reload. The gate animation was quite slow in BG2, so my party did a strategic retreat. It's not like you had to figth it.
I've got a closer call with one of the wild surges in BG3, the one that gives you random wild effects every turn for five turns. Almost wiped out my party, as it both summoned a magma mephit and a fire explosion on the party. So I'd say the wild mage experience is dangerous already.
