If an Omen spell is copied, that copy is also an Omen and is shuffled into its owner's library as it resolves
More often than not, getting your cards graded by an authority such as PSA will increase their value, but if this is your sole reason for submitting do take into account the grading costs, and the extra fees you might pay to a market place to sell the higher value version of your card
And if they dont, thats also good for you because theyll be slowed down
16 Gym Badges in one Pokemon game
There are different varieties of streams, one known as "Rip and Ship" is where the buyer will buy a pack of cards, have the seller open the pack live, then ship the cards
There are a lot of potentially great options to build around, so if you don't see a commander here, that doesn't necessarily mean it's bad