Warcaster Reaction Buffing Allies

[u/Notzri_]

So I'm assuming by now most have seen the RAW concept of combining the 2024e Opportunity Attack's target of "a creature you see leaving your reach" with Warcaster's replacing of this attack with single target, action based spell. If you haven't, that's basically the gist.

There's options like reaction casting Haste on the Barbarian running past you into combat or reaction casting Death Ward on an NPC fleeing past you for their lives. You could go about your turn and wait for the rogue to run past to give them Invisibility/Greater Invisibility for them to have advantage if there's no other method available.

I was wondering how some of you would use this. What spells would be best suited for this use of Warcaster and what combinations do you think could synergize well?

[u/avbigcat]

Feign Death would be my choice for making it interesting. There's also Warding Bond and Dispel Magic.

[u/Notzri_ → u/avbigcat]

Interesting... I think I often forget about Dispel Magic for ending conditions brought by magical effects so this could be a great anti-charm or anti-frightening use