Take out Seal, since the 500 boost for your vanillas isn't worth losing your entire ED (especially since the ED has so many good cards available)
PicoDevimon (DemiDevimon) 56
As a sorcery, you may pay the mana cost of a locked door to unlock it.) If creatures you control deal combat damage to multiple players at the same time, Locker Room's ability will trigger once for each player dealt combat damage this way
As for a rating, these factors earn the deck a B
Step 5 Receive and Verify Your Graded Cards After PSA grades your cards: Check your PSA account for grade results before the cards arrive Verify each slab matches the card you submitted (cert number, card name, grade) Look up your card on the PSA POP Report to see how many copies exist at each grade Update your collection tracking with the PSA certification number Your graded cards will arrive in PSAs tamper-evident slabs, ready for display, sale, or long-term storage