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The list of one-mana white lifegain spells that are better than Fasting is too long for one article

One-sided sweepers also bust through blockers

Even if the card were permitted in competitive play, it's horribly underpowered compared to the best Pokmon cards of today

And unlike most abilities that stipulate that the character cant quest after being readied, Eruption says nothing of the sword, making this a pretty strategically advantageous card

As it is, its really good in squirrel decks like Chatterfang or Hazel, and you can even conjure it with Euru, Acorn Scrounger on MTG Arena

The plane of Ixalan is not our universe