A 4/4 for four mana, Raggadragga not only provides creatures with mana abilities with +2/+2, but it states that whenever such a creature attacks, it untaps, meaning they may be used to attack and produce mana within the very same turn
But if you find yourself in a hand-based matchup, like a combo deck or a blue mirror, then Ego Drain seems like a big add for your Halo Forager package basically Faerie Fencing for non-creature decks
But it might be time for that to change in Historic thanks to the printing of Longtusk Stalker in Jumpstart: Historic Horizons , which solves one of the deck's biggest issues: the lack of a playable one-drop creature
An Isochron Scepter package that may include Orim's Chant, removal, tutors, counterspells, etc