Read the Bones seems like a really weak card that could be replaced with better card draw or recursion (Necropotence?)
Double Trouble is an instant that suddenly doubles the power of your entire board, which often turns what looks like a normal swing into a lethal one for multiple opponents
Flare of Cultivation First off, this is a sorcery, so its the least flexible of all the Flares and cant sacrifice the creature in response to removal
Then, if you have 2 or less Life cards, play this card
When it's defeated, exile it, then cast it transformed.) When Invasion of Theros enters the battlefield, search your library for an Aura, God, or Demigod card, reveal it, put it into your hand, then shuffle