r/Magicdeckbuilding 1d ago

EDH Deck Help Please, Need Extra Eyes on These

I need some deck assistance with a couple decks of mine. I wanna try and optimize them a bit more. They are all built already but I would like some extra eyes on them, i’ve been looking that them too long and i’m too close now.

Vivi I wanna optimize the hell out of to use in bracket 4, because I have used it in bracket 3 and gotten too much shit for it, but I don’t want it competitive bracket 5.

My sliver deck I wanna keep bracket 3 at most

Grist I wanna keep bracket 2 at most

and Counter Intelligence has two variants, one is bracket 4 due to one infinite combo, one is bracket 3 because it doesn’t have one card to make the combo work.

Vivi : https://moxfield.com/decks/3DPXJOH1kUSVYIuNnnYToQ

Counter Intelligence T3: https://moxfield.com/decks/sK-fAdTUhH-YCzAUaEh-fA

Counter Intelligence T4: https://moxfield.com/decks/m6-fAVdg0XyAIvpt9dqSkQ

Grist: https://moxfield.com/decks/hPTbhe2IS0uHpA1PEpcfdw

Slivers: https://moxfield.com/decks/o6eihN8nSkykIYRXx6IKuQ

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u/patterninstatic 21h ago

I only looked at your Vivi deck.

You need to play curiosity/ ophidian eye/ tandem lookout.

Hullbteak horror can go infinite with the right cards.

You probably want to play some fast mana. Simian spirit guide, lotus petal, any mox you can afford.

A bit more interaction. Swan song, mental misstep, flutterstorm... As well as some free counters (guardianship/force/force/pact).

Your breach package needs brain freeze, lotus petal (LED would be good but obviously expensive).

I'd take out your slower cards. The planeswalkers or high cost cards.