my wife and I are starting a short campaign on lvl 7 as Druid6/Monk1 (me) and Hexblade7 (her) Combo and I'm wondering if anyone has played such a combo before?
The general idea of us was following: As Druid of the Moon Circle I transform into a Giant Elk, and that way giving her on my back with the Mounted Combatant feat the ability to almost attack all (except huge and giant) enemies with advantage. In addition (when the situation is suitable) she can cast fly on both of us - due to I'm a willing creature that wants to become the Flying Elk!! :D
Furthermore I could cast a concentration-spell, like conjure animals, then transform into the Giant Elk, - hold action until she mounted me and then charge into the enemies. In case that I get hit so I need to make a concentration check she could use her reaction to take the damage instead, so I don’t need to make any check.
And here Question #1: If an area effect would hit both us could she still use her reaction to take that damage?
As a Lightfoot Halfling she can try to hide behind a creature that is larger than her.
Question #2: Can she hide within my 3x3 space? For example blend in with the fur etc??
My AC as Elk will be pretty high 17-18 with Unarmored Defense, so I think it’s no use for her taking a shield while mounted. But most weapons which you can wield two-handed are “heavy” and therefore not available for a Halfling.
Question #3: But what about the conjured Weapon? I think you can counjure a scythe in a bit smaller variation, which still does a terrific job of 1d8. Does the Hexblade Ability fade out the weapon requisition?
I think it will be a huge fun, seeing two nice cute little Halflings (yes I'm playing Gostwise, so I can communicate with everyone while in Beastshape) kicking the Souls out of everyone and everything!!
It's pretty common in 5e for players who work together to be able to create synergies like the ones that you're describing that make them much more effective than they normally are. That's fine, it's teamwork. Just make sure you don't optimize so much for that one scenario that you're too weak in other scenarios or else you'll find some scenarios that should be easy that you have to run from.