Sephiroth, Fallen Hero sets your modified creatures to beefy 7/5s at base when he swings, which is fantastic if you manage to go wide
You get the enchantment + Ghostly Prison for pillow fort decks, a good-sized vigilance creature for defense, and a creature that can attack alone and get rewards for samurai decks
While this card has seen a pair of Secret Lair printings, supply is still fairly limited overall
The choice of planes includes Norn's Dominion because thats too ridiculous to ignore, some wacky phenomenon cards (we can have two of them), and planes that benefit from having small creatures, Naya creatures, or tribal interaction
Card Draw/Manipulation Card draw and deck manipulation arent technically fixing, but they work a lot like it
Any cards that trigger when a player cycles a card will trigger when a card is discarded to pay an activation cost of a typecycling ability