Maybe this shows up in some fringe situations with death triggers or in strange attrition matchups, but I dont anticipate it being particularly good
Flash creatures only suffer from summoning sickness on the turn they are cast, so if you cast it on your opponent's turn, you will be able to attack with it during your next combat phase
For three mana, you get a one loyalty walker and can give it +2 with the first ability immediately and Scry 2
Build your colorless decks around these sorceries and permanents like Echoes of Eternity, Kozilek, the Broken Reality, Portal to Phyrexia, Glaring Fleshraker, Walking Ballista, or It That Betrays
There are newcomers galore here, with tons of stuff to excite counter-lovers, Final Fantasy X fans, and Atraxa fans: Tromell, Seymour's Butler: Tromell wasnt an important enough character to really deserve a card, but Im not ignoring anything that says, proliferate X times, even if theres a condition behind it
Balance Staples and Synergy Cards Most decks start with a few of the best white cards in MTG : reliable removal, protection, and maybe a strong engine piece