Thanks to it being a kindred sorcery, All Is Dust can also benefit from methods of reducing Eldrazi spells costs like Eye of Ugin
Unless you go through the trouble of specifically placing more +1/+1 counters on her through different means, Arcee, Acrobatic Coupe will always only be a 3/3, while Arcee, Sharpshooter will likely only deal 1 damage each activation
They were tournament level, and he killed all three of us very, very quickly
The synergy between these two inks is actually pretty great
When it dies, it leaves behind two 3/3 tokens, one with lifelink and one with deathtouch
You can't just throw this into any deck with blue and expect it to put up results