Rune
Once A Fool
So a spellcaster without cantrips would just be out of luck? (Not sure if there are any A5e casters without cantrips, but there are certainly multiple ways to get there in O5e – and these rules are supposed to be modular, right?)Well, my bigger point is that by always limiting the follow-up spell to cantrips, the caster still gets a consolation prize, but can't cast a nearly arbitrary alternate spell that might similar enough to the original spell to make the counterspell effectively meaningless (such as my plane shift vs. dimensions door example). There's also precedence for giving out extra cantrips per round (e.g. quickened spell), so it's a less-drastic exchange.
But the reason I agree a cantrip shouldn't get a second chance isn't the power level of the cantrip, but rather the cost to the counterspeller. If the counterspeller spends a 3d level (or higher slot) and their reaction to cancel a firebolt, it'd be really disappointing (and frankly unfair) for the original caster to just return with a ray of frost.
Edit to add: Also, the spell as written allows a countered healing spell to be replaced with a lesser one in a critical situation (a good thing). Not so if it only allows cantrips as replacements (unless there’s an A5e cantrip that heals – I haven’t really had a chance to delve far into these books, but I’m guessing no?).
Last edited: