Counter Blitz is the Final Fantasy 10 deck, and based on the game's sphere grid, which translates to Magic in the form of +1/+1 counters
However, this complicates the game in a way that makes it far harder for new players, and itd be hard to remember anyway, which would be annoying
It would especially provide some additional options for mono-white, a prospect that I'll admit has me salivating a bit
That is not the case for Eidolon of Blossoms
In the vast majority of games, the life that your opponent gains from you nuking their creatures with Swords to Plowshares will not amount to much, unless theyre playing a black deck with life-to-resource cards (watch out for Toxic Deluge or worse, Yawgmoths Bargain !) Swords to Plowshares isnt a particularly expensive card, and its very easy to find
If you're not playing an artifact deck, Tezzeret is a quick way to go tutor for a Sol Ring