Limited play, especially Draft, is a huge part of the Magic ecosystem
Essentially, a deck that can get multiple lands out per turn, cast giant creatures early, and mash opponents to death using those giant creatures along with some trample sprinkled in here and there
Creeping Tar Pit (Worldwake) | Illustration by Jason Felix Summoning sickness is a term used to describe a creature that has just been played on the battlefield, and because of this it can't attack or use a tap ability
Like most Magic: The Gathering cards, the value of The Eldest Reborn depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Commander Masters)
Unfortunately, you also have to discard as many lands as you want to destroy