Sliver Swarm Upgraded v6 (EDH / Commander) [Revision 13]

Upgraded version of the Sliver Swarm pre-con deck, without breaking the bank.

Same commander, but you can keep all your tokens forever with [[Teferi's Veil]] instead of sacrificing them at end of the turn.

Manabase upgraded without breaking the bank with Cycling triomes and trilands, checklands which works in unison, pain lands etc. [[Prismatic Omen]] to make all lands equally good.

Different artifacts for mana production and making sure you always have all colors like [[Chromatic Lantern]] and can keep more card in hand [[Thought Vessel]] instead of milling yourself.

A more selective wipe with [[Merciless Eviction]], [[Farewell]], [[Ruinous Ultimatum]] and restore your board with [[Eerie Ultimatum]].

I usually play against lots of artifact decks so I also went for [[Viridian Revel]], which you can avoid if it's not your case as well.

Extra protection from wipes plus some other options provided by [[Boros Charm]] and [[Golgari Charm]]. [[Oversold Cemetery]] and [[Hunting Grounds]] to boost Sliver production/return from graveyard when not encored.

Better selection of slivers that can boost each other if encored and kept onto the battlefield.

[[The First Sliver]] is a good card, but it's way overpriced at the moment and it's not necessary.
[[Sliver Legion]] is a WAY better value. It's much stronger alone, but if you encore it... you are basically always lethal guaranteed.