Axebane Guardian made a lot more sense when there was a soft Naya defenders deck getting seeded but whereas Doorkeeper looks good and actually does something weirdly - since blue had more defenders when it was added - Axebane does... much less. The R/G defenders are slowly going, and it doesn't go in the same deck really as the W/U defenders. In addition, there are better ramp cards in the cube. Sure it fixes but currently I don't feel this is a 3+ colour cube, oddly. For these reasons, at the very least temporarily cut. Doorkeeper, I'll admit, probably next.
Throne Warden is the weakest looking 2 drop. Monarch already has enough incentives, honestly, and at least the Orzhov Knights come with their own Monarch trigger. This is out for the same reason that all the voting matters cards are probably finding their own days numbered - can't support every archetype and this is just a 3/3 for 2 usually, right? Shrug Have to cut something.
Originally when I was building this cube, I intended to keep to a common/uncommon/rare breakdown. Now, however, I'm doing a W/U/B/R/G breakdown, which means that the number of cards in each colour is what matters, not the proportions. For that reason, I'm doing the Battlebond thing - some unimpressive but necessary cards get up or downshifted in rarity (who thought that Irresistable Prey for instance was uncommon? There are a few of those in Battlebond.) But because it's colour weighted, I don't mind "Oh no, there are more 'uncommons' in this colour!" for now - I intend to get it back to consistent numbers eventually but for now, this works for me while I try and figure out better replacements. The curve and the proportion of creature to non creature still feels VERY off in this cube, and I need to rectify that eventually.