Same mana cost, triggers precombat, swaps two life for a card, one for a Token or three for a 3/2 and you can do a few here and there or all three
Which begs the question: what makes Timetwister so desirable
Here is the best time to start your first magic game
It becoms stronger as mana costs rise, making it incredibly difficult to balance and limiting it to super specific cards like Unwind or expensive cards with miniature versions of the effect like Pore Over the Pages (which is nevertheless a potent part of Pioneer Breach combo decks)
Deckbuilding implication: you need cheap threats , cheap interaction , and card flow that doesnt cost your whole turn
Which deck you choose depends on what you look for, and I encourage you to follow these tips and build your own deck around your favorite Commander from scratch