It has a sizeable body, and it basically lets you cheat permanents into play around counterspells and without spending extra mana, if you pay the Warp cost when you have a lot of lands
Verhey also emphasized that they want to make sure not to invalidate previous commanders or have too much overlap on legendary creatures
In Timetwisters defense, Echo of Eons is exiled once you flash it back, so you cant do loops, but its still a very powerful wheel effect for a low mana cost
though these wont be earth-shatteringly powerful cards, Uncommons will tend to be the backbone of most strategies and combos youll see in a deck, given that theyre more readily available than the rarer cards and more powerful, in general, than Commons
I mean, what good is it to name odd or even when your deck is made up of cards with a mix of mana values