Many of them fall into the damage prevention camp (Boros Fury-Shield, Comeuppance, Deflecting Palm, Reflect Damage, etc.) but stuff like Agonizing Demise, Arcbond, and Rakdos Charm fit as well
Nicanzil's first ability won't resolve until after you're done exploring
I am a bit worried that 2 mana can be slightly too expensive for a tapper, but it is potentially a crime per turn cycle
On the Limited Resources podcast, which I do every week with Luis Scott-Vargas, he's fond of saying that balance in a format doesn't necessarily make it fun or interesting, and this set is a prime example of that
These fairy tales fight back
Akroma is clearly an angel of few words, because her sword does all the talking when defending the innocent