This is a fantastic effect, providing a huge mana discount so long as you have huge Creatures to put into play
Plus, theyre a huge amount of fun to play with
When you have such a deck then Upheaval is one of the most game ending and unrecoverable things that you can be doing, bouncing everything is a lot more brutal when you have no lands left to play the things again with either
It ramps a set number of 10 tapped lands but anything - nasty
(When it dies, if it had no -1/-1 counters on it, return it to the battlefield under its owners control with a -1/-1 counter on it.) Illustrated by Igor Kieryluk Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
Im glad to see the 3,800 Alela decklists appear to be paying good attention to their mana curve, but 34 lands is still way too low