Spells or Spell-likes that force the opponent's next action (bard or magus)

[Covert Operator]

I'm playing a Puppetmaster Magus. They have a special ability to cast one spell, and then if their opponent fails the save against that spell, charmstrike a first-level enchantment spell on top.

I've been trying this with spells that reduce saving throws, but I came up with a better combo:

Force the opponent's next action to be dumb, and then charmstrike Deja Vu.

Currently the only spell I have used for that is Beguiling Gift, which I used pretty well by passing my opponent two 'potion vials' that contain alchemist's fire.

Unnatural Lust could be good as well.

Any other good spells for this?

[Jared Walter 356]

You might consider:
Lesser Confusion
Hideous Laughter
Charm Person
Sleep
Lock Gaze

[avr]

A spell which forces a combat maneuver could let deja vu make them pick themselves or their sword up again. Pilfering hand, toppling magic missile, earth tremor for example. Edit: needs a save of course.

Or it could follow up color spray on a 6+ HD target. Battlefield control spells which made the enemy move to avoid the effect could make them move again.

[Covert Operator]

Thanks for the ideas! Color Spray at higher levels is surprisingly good when combined with Deja Vu.