doctorbadwolf
Heretic of The Seventh Circle
Other than being clunky, I don't see any reason why you couldn't grant level 1 cantrips. Probably even level 5 cantrips at higher levels.
Or low levels spells while you're at it, since spell slots are still expended.
Though, I still like using reactions to reroll (or other similar bonuses) better both from an agency perspective (you "help", you don't "command"), a game flow perspective (ranger does things on the rangers turn), and as making the class feel different (most classes can spend an action to deal 2d6+5 damage).
I’m cool with that, but if it’s the warlord’s main thing, they should also be able to grant bonuses to allies when the warlord attacks on their own turn, and boost the offturn thing with bonus damage at later levels, probably.
I still think that something like legendary actions, but you’re granting them to allies, should work fine, but I get where you’re coming from.