Which rounds/level Wizard or Witch spell (buff) would you chose to last 24h?

^Title pretty much.

Its only possible at lvl 20, so things like haste are nice but not as beneficial as it would have been at lower levels.

Hmm… Sense Vitals as a lvl 2 spell would be first on the list… unless you want to be complete cheese and extend ‘summon monster’. “All my mobs last 24 hours, what you gonna do about the SWARM.”

Maybe Greater Invis if everything didn’t have true seeing… Gotta play against the meta.