Quantum Quandrix

Quantum Quandrix is a 100-card Commander precon from Commander 2021, released April 23, 2021. It is led by Adrix and Nev, Twincasters, a Simic commander.

Adrix and Nev, Twincasters

Ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)
If one or more tokens would be created under your control, twice that many of those tokens are created instead.

The list runs 40 lands and 28 creatures, and its nonland cards average 3.82 mana. At today's TCGplayer prices the whole deck's cards come to about $82.20, and the most valuable is Spawning Kraken at $12.68.