They may no longer be on the battlefield, they may be under someone else's control, or they may somehow have turned into lands
That player may search their library for a land card with a basic land type, put it onto the battlefield, then shuffle." Better yet, this ability also costs one fewer mana to cast for each legendary creature you control
I don't care how good Liliana's Reaver ends up, I'm still going to think "it's worse than Disciple of Bolas" and that means it's likely not going to ever be worth anything
it doesn't matter which one of each Pokmon is from Kanto
Starting with a few more affordable graded cards can be a great way to learn the market and build a diverse collection quickly
Whenever you cast a noncreature spell, you may pay life equivalent to the spells mana value