Once during your turn, when you play this Pokmon from your hand to evolve 1 of your Pokmon, you may put a Supporter card from your discard pile into your hand
Once the deck can reliably trigger Coven and access new cards, it can showcase its greatest strength: getting large amounts of power and toughness into play
If the Pokemon Darkness Energy is attached to does damage with an attack (after applying Weakness and Resistance), the attack does 10 more damage
These cards are legal in Commander, Legacy, and Vintage
The best uses are pumping Phyrexian Germ tokens on living weapon equipment like Batterskull, or looping a creature by feeding it to Mortarpod or Mask of Immolation
Basically any card that says when you perform your deck's dedicated action, draw a card is solid since it adds card advantage in addition to whatever you were doing