monument cards mtg to Perfection (Extended Art) [Phyrexia: All Will Be One] (Each of them puts the top two cards of their library into their graveyard.) (Activate each exhaust ability only once.) Illustrated by Anthony Devine. Magic the Gathering Aetherdrift Rare

Taurean Mauler Taurean Mauler is an example of a Changeling that gets much better in a Commander setting

9 - Dawns Truce Half Surge of Salvation and half Teferi's Protection, Dawn's Truce allows protecting permanents and combos from removals, yourself from combos and other types of interactions for a lower cost than the most comprehensive card, but also greater than Surge of Salvation

There really is no better place to play the format

Offspring is in the main set, so there is that to consider, but even leaving that out the absolute deluge of things that randomly create tokens these days means this could potentially be a very powerful mode

If the toy has a horn, scry 2

Interestingly, although each card involving Ripple requires four cards to be revealed, the mechanic is templated as "Ripple X", meaning that further iterations of the ability could involve revealing a greater or smaller number of cards