If the only monster you control is 1 Level 5 monster: Tribute it
If the autograph and JSA WPP sticker are genuine, your card will be automatically encapsulated with the CGC Signature Series label, which will identify the signers name
That creature becomes black until end of turn
4 Elenda, Saint Of Dusk The Saint Of Bloodsuckers Returning from her awakening on Ixalan, Elenda, Saint of Dusk comes back with a very powerful ability that protects her from most removal spells your opponents will send your way
Both games have official formats that define the card pool that players may use when building decks, complete with ban lists and the like
For expensive cards, use the app as your first pass, then confirm the exact variant, condition, and recent sold comps before listing, trading, or submitting for grading