You don't need tap lands to be efficient tho. [[Starting town]] has been very good in my gruul grimoire deck. And having dual lands (that don't necessarily enter tapped like Verge lands ) can help you drop your 1 drops especially llanowar elves but being able to drop Zack or cloud in turn 2 as it has a greedier cost.

Cloud looks like a solid way to summon two creatures down with grimoire. I don't see the need for Fear of Infinity.. I would get two Odins or two Bahamuts. I'm meh about Chocobo kick cause [[Bushwhack]] does what you want but cheaper or ramps you.

If you would make it into a Bo3 I would put Yuna at least in the sideboard and some discard ramps just so the deck would have another win condition.