If you do, it gains Whenever a land enters the battlefield under your control, if Cosima is exiled, you may put a voyage counter on it
No card is essential and swapping a handful of cards will not significantly change the power of these decks
A token that isnt a copy of another permanent has a converted mana cost of 0
Instead, cards in MTG Foundations will remain Standard legal for at least five years
a1-93-frosmoth is another option, but you'll have to add Water Energy to your Fire deck, which could make things awkward
In Innistrad: Crimson Vow last year, we got a card called Bleed Dry, which is a random, forgotten uncommon that is the same as the front side of Invasion of Innistrad but with the upside of exiling the creature that it kills, and cards like Tragic Slip and Tragic Fall do the same thing for one or two mana if their morbid or hellbent conditions are met