It guides the cards you choose in a draft, how you build your deck for sealed or constructed, and a multitude of in-game decisions, like whether you need to counter a specific spell or what creature to use your removal on
There are plenty of cards which provide good value
This wikiHow will show you where to sell Pokmon cards for cash
Just look at this short list of what you can get back, from the top of my head: Zulaport Cutthroat Cruel Celebrant Corpse Knight Elas il-Kor, Sadistic Pilgrim Bartolom del Presidio Blood Artist Viscera Seer Carrion Feeder Marionette Apprentice Reassembling Skeleton Putrid Goblin Cathar Commando Cast Raise the Past, sacrifice your entire board in response, and get them all back none the worse for wear
TYPE Legendary Creature Dinosaur Mutant ABILITY Bloodthirst X (This creature enters with X +1/+1 counters on it, where X is the damage dealt to your opponents this turn.) Menace Enrage Whenever Indoraptor is dealt damage, choose an opponent at random
The land from a Lander token does come in tapped, so unless you need a landfall trigger, there's little reason to use a Lander token on your turn