Echo of Eons Echo of Eons can be potentially two Timetwisters in one, or at least one if you manage to discard it and flash it back
Kess, Dissident Mage Kess, Dissident Mage is a bigger Snapcaster Mage, and the ability works once every turn
Having a second enchant creature on the list is clearly a sign that these decks played things pretty safe as far as two-player games of Magic go, but Grim Reapers Sprint incentivizes you to cast it at a point in the turn where you would expect your opponent to have already fired off their removal spells
The commander's color identity is Naya, which is Green, White, and Red, giving you plenty of cards to swap out from
Just remember to not slam the second Chalice x=0 once you have one on board