Not only does the card act as a Flash lord for all your other Faeries, but your other Faeries gain Shroud
For example a removal spell that can't target Spellskite would be preferable to one that can, and in a devotion deck you might prefer the same creature for GG cost over 1G and so on, so no card is "absolutely under any circumstances better" than any other, but "strictly better" is still useful as a concept
Based on what Ive seen, those combinations didnt seem especially strong in Edge of Eternities Azorius also played almost exactly like it did in Tarkir: Dragonstorm anyway
Let the language follow from where the premium actually lives, not from a blanket preference applied before you have even looked at the numbers
Entwine was a lovely mechanic: A kicker variant to act as a mana sink combined with modal spells (two-dimensional charms), all of them carefully designed so that the two effects combined were greater than the sum of their parts