Compare charge
yup, but lawmage binding is a fairly week card and this cube is supposed to be at a higher power level. Arrest sees very little play and doesn't have the restrictive two color cost. I don't think this one will be too strong. It might be too strong for a standard environment, but I'm not designing for standard.
Many cubes run Demonic Tutor which costs 2. This costs 1 more than that to let you have it as an instant.
I think you're mistaken? Lightning bolt costs {r} and is an instant.
Compare cryptic command. Sleep is definitely below the power level I plan for the set.
I go back and forth on how I feel about this one. Keep in mind that you have to find a way to tap her, presumably attacking, for her ability to do anything. I'm gonna leave it as is for now, but I definitely will keep on eye on her during playtesting.
Many cubes run mother of runes, which I consider to be above the power level I'm looking for. The stump is a somewhat nerfed version of that, plus I like that she protects the small creatures, like how she runes an orphanage. I'll watch her during testing. If she needs a nerf, I'll probably change it from "3 or less" to "2 or less."
Removed "trample." Should still feel powerful like that.
compare angelic overseer. I think this card would positively break standard, but I'm not too worried about it here.
two mana for +4/+4 isn't game breaking IMO. Titanic growth is in standard in almost perpetuity as sees almost no play outside of the the occasional infect deck. Vines of Vastwood has that and also a conditional counterspell.
That's exactly what she is designed to be . Notice her P/T is worse though. Your advice did inspire me to dock a toughness point.
Added, if only for flavor. The combination of just hexproof, first strike and deathtouch is powerful protection.
Thanks so much for all your feedback, even if I don't adjust everything based on it, I really appreciate seeing what other people think are under or over powered.