This card is a psychic powerhouse with the Erasure Ball attack that scales damage based on energy discarded from your Bench
Also, there are some pesky cards that Grixis colors are not very well prepared to deal with and that end up being very relevant in the EDH panorama, countering is our best way to deal with those
In Celebrations, the entire of the main set is Standard-legal, and so are most of the promo cards that come in tie-in products
Interruptions aside, if your opening hand contains two Drytron names, you can usually get two Drytron names on board without too much hassle, at which point you'll usually want to overlay them into Drytron Mu Beta Fafnir
If you do, search your library for up to two basic land cards and put them on to the battlefield tapped, then shuffle your library
If it is a DARK monster, add it to your hand, if it is not, send it to your graveyard