whenever a card is exiled mtg Sothera, the Supervoid (Showcase) [EOE Mint / near mint condition trading card Yidris, Maelstrom Wielder (C16) #50

This is a case where the Japanese version might just be better than the English version simply for including more of the original cards features

The token copies exactly what was printed on the original permanent (unless that permanent is copying something else or is a token

This decks commander, Pantlaza, Sun-Favored, allows players to discover a Dinosaur once per turn with a mana value equal to or less than the toughness of a dinosaur that entered the battlefield

Everflowing Chalice

But you can also create a combo style deck that relies on untappers to build up infinite mana, or uses them with Lathril herself to close out the game

If a card in a graveyard has in its mana cost, X is 0 for the purpose of determining its mana value