Dowsing Dagger is another staple, with Arnas inherent flying making the blockers that it generates for your opponents negligible
When the ability tries to resolve, if the number of attacking creatures is no longer greater than the number of quest counters on ED-E, it won't resolve, and you won't put a quest counter on ED-E
If a 4/4 Deaths Shadow resolves, they have to bounce and then counter it
Magic is bringing that nightmare to life with their new toy creature type debuting in the Duskmourn: House of Horror MTG set
Weezing, on the other hand, has the wrong name entirelyNidoking
Three of them provide mana fixing, although I would consider only Oasis Gardener to be a good card