Quote from TheAller »AV is odd in that list. I would stick to the "model" that has been working lately, with Electrolyze and more Helixes. A Geist/Queller build like that needs Burn. Your plan is not to suspend a Vision and sit back, you're trying to be proactive when needed.
In my list I will make room for Opt going down to 22 lands and trimming 1-2 cards (Queller could be one of them).
My current list for reference:
I will probably try to go -1 Colonnade, -1 Queller, -1 Helix and I'll have to think about the fourth slot. Could be another land, could be a Serum Vision even. I know for a fact Snapcaster, Bolt, Path and Cryptic will always be 4 of for me and I'd like all the other cards to be at least 3 of, I like the redundancy.
playing 4 colonnade and 4 cryptic I don't think even with Opt I'd go below 23 lands, this is a mana hungry deck.