Two-colour combinations Three-colour combinations Four-colour combinations Five-coloured combination You can include any number of the five MTG mana colours - Blue, Black, Green, Red and White - in your deck
And the burn can add up quickly, especially if you pair this with wheels and other forced draw effects
You can also get a fast start by putting Vengevines in your graveyard and powering them out on turn two
As Mega Evolutions continue to rise, expect to pay more for these cards if you wait too long
In practice, shuffling once is sufficient, but effects that care about you shuffling your library (like Psychogenic Probe, for example) will see that you've shuffled twice
Id personally keep them to enjoy and wouldnt bother with regrading, but if youd like to take your chances thats up to you