Thanks guys. I think I'll switch to Cosmogrand Zenith because it has a few advantages:
- Only 1 pip of coloured mana
- Bleeds more openly into other archetypes (+1/+1 counters, spells)
- Is both a go-wide enabler and payoff.
- The decision to attack with its 2/4 body, pump it with counters or hold it back seems interesting.
- Sequencing to get the trigger seems more interesting.
I dislike vigilance on Adeline. You are already hitting like a truck AND you have a big defensive butt, good luck cracking back. For that reason alone, I would go with Zenith.
I'm fine with Adeline having a huge board presence because it seems kind of its thing. For me the issue with vigilance is just...how easy it is. Most of the time, there's no reason to just attack with it.