Not every creature can be re-cast from the graveyard, so permanents that generate tokens are vital for this strategy
The rare card was given as a prize at a Japanese competition in 1999 It's one of the rarest Pokemon cards in the world and it has gone missing
As Polygon notes, The Pokmon Company has made clear that, when fans distribute art featuring any of the companys copyrighted intellectual property, they are agreeing to a royalty-free, non-exclusive, irrevocable, transferable, sub-licensable, worldwide license that gives it the right to use, transmit, copy, modify, and display Fan Art (and its derivatives) for any purpose. Legally speaking, that means TPC would have been in the clear to keep the immersive Ho-Oh as is
Urza, Lord High Artificer does it all: It generates obscene amounts of mana, gives you an outlet for infinite mana, and even combos with cards like Winter Orb and Static Orb to lock your opponents out of the game