...the PC’s are about to come up against a 6th level Wizard...
Levels in DCC are roughly equivalent to double the level in another D&D-type game.
So a 6th Level Wizard is like a 12th Level Wizard in another OSR type game, in terms of the raw power he could unleash.
If the PCs are, say, 1st Level, going up against a "12th Level" opponent is obviously a deathtrap for them. Knock your NPC Wizard down to maybe
3rd Level, and it's still an uphill challenge, just based on what spells that NPC could have access to...
Also, DCC is very swingy in the way the dice do the deciding on power levels. So a party of 1st Level characters could take out a 3rd Level Wizard without breaking a sweat -- if the dice go their way. Or he could wipe them all out, if the dice go his way.
But, y'know, if you've started the game at a higher level, maybe 6th is fine.
Gnome Boy (a.k.a. "Jon") • DCC play-tester @ DDC 35, Feb 2011. • Beta DL 2111, 7:00 AM PT, 8 June 11.Playing RPGs since 1977
• Quasi-occasional member of the Legion of 8th-Level Fighters.
Link: Here Be DCC Monsters