ceruledge pokemon day card price – 098/193 – Cosmos Holo Promo this attack does 100 more damage. Ceruledge #109 - [Graded PSA

Furthermore it fills up your graveyard which makes splits with flashback cards involved extra hard and can be generally useful for many things from Snapcaster Mage to Psychatog

Every time it mutates, you get an instant or sorcery back, which means in the right deck you can loop value quickly

Its a repeatable tutor that takes a bit of investment but offers better and better value the longer the game goes

Not guaranteed

I actually think that while this deck is always good to have in your back pocket, it might have actually gotten worse thanks to Lurrus getting banned

If the Magus is the only creature you control after you cast it, then you could slow things down prohibitively