White's Addition
I already have my Jeskai cube, so I wanted to add a color to this cube as an experiment. I think a 4-color 180 card cube is better for 4 players, although I also think it decreases the tension for 2 players. Another advantage is that the pool of cards that fit this cube is quite slim. Adding another color deepens this pool and therefor the amount of fun, playable cards in the cube!
2-Drops
The hardest part of this cube is providing the proactive strategies with low mana value threats. Honestly, white didn't really deliver on this front. White, like green, is allowed 2mv 2/2 creatures at a lower density. Hyper-aggressive decks should be improbable without the addition of Black or Red (whose 1- and 2-drops have downsides).
Creatures still kinda have a downside here:
Attentive Sunscribe is an artifact, which is easier to remove (both by cards and stickers) than any non-artifact counterpart.
Checkpoint Officer has only 1 power, which makes is mostly fit for power/toughness stickers because of it.
Stalwart Valkyrie needs a creature in your graveyard to be a 2-drop, but is still totally functional as 4-drop. She might be my favorite in this category
Toughness = Mana Value
In a similar vain, higher costing creatures come from a smaller pool as well. Higher toughness creatures can be stickered by more stickers, so creatures want to have a relative high toughness. However, overpowering those same creatures with stickers has to be avoided. This split in needs is generally fixed in downside mechanics.
I generally strive for aggressive downside mechanics, although white severely lacks these.
Militia Rallier is probably the most aggressive version of the numerous defender-variants.
Cursed Courtier is in a whole different ballpark, in that it nullifies any power/toughness sticker you could put on it... unless you can get rid of that pesky curse!
Befriending the Moths is the time-bomb mechanics: paying now for a creature later, which works really well for this cube in particular.
Removal on a Stick
As stickers are the focus of this cube, creatures should be the focus of this cube as well. I try to put as much removal as possible on creatures because of this.
Spring-Loaded Sawblades and
Unstable Glyphbridge are awesome recent additions from
Lost Caverns of Ixalan that fit this cube like a glove.
Banisher Priest is a more generic example of such creatures, although this example only removes creature temporarily.
I like white for the controlling options it provides, although it lack a little bit of cohesion with the rest of the cube. Ironically, it's the only color that can deal with the high-toughness creatures that I fear (a little). The color needs its time to settle in.