AaronOfBarbaria
Adventurer
Ah, yes... but that just means a challenge as the DM to improve your chops: make sure that no one spell is always "optimal."I guess I mean, "Whichever spell of a given level is optimal, will be spammed repeatedly."
A couple thoughts: If your players keep doing this, then either they enjoy doing it or they absolutely hate the sort of encounter you describe and are doing anything and everything in their power to get away from it as quickly as possible. Either way, one side of the equation needs to change - either you start having fun because they are having fun, or they mention they hate this encounter type and ask you to avoid putting them in it anymore.In the case of my party's wizard, he has a tendency to counterspell or dispel any serious magical effect -- which makes the game kind of boring. It means the first few rounds of a mage duel are spent just burning off each other's spell slots with counterspell to no real effect. Then the warriors wade in and finish the poor NPCs off.
I would love for the wizard to say, "Well I might want to save my one counterspell for later so I'll just let him conjure those animals... at least they will be nicely clumped for this fireball!"
And if your wizard thinks counterspell is a better use for a 3rd-level spell slot in that situation than letting the enemy caster successfully cast a concentration spell and using that 3rd-level slot on a spell attack directed at the caster that will do damage and potentially take their spell out of play... well, not much you can do about that except start a "counterspell-off" as has been mentioned and have your enemy casters counterspell your wizard's counterspell.