Youre ramping very quickly, and youre ramping with lands, so its resistant to sweepers and means you can flip Nissa, Vastwood Seer well ahead of time (turn one Elvish Mystic, turn two Nissas Pilgrimage, turn three Nissas Expedition, turn four Nissa, flip is an example of the fastest way to do it)
Solitude lets white answer creatures even when shields are down, which makes it one of the most flexible removal tools the color has gained in years
You get to pick your choice of either giving a creature you control flying, vigilance, or lifelink for a turn, depending on your needs
Im sure it will shine in due time, even under the shadow of its predecessor
It's not just one Time Walk...it's two
Playing in a group or solo, youll go up against Ursula whose powers increase throughout the battle