Today, her spot has been usurped by The Scarab God, a ridiculous creature that gives you far more value for a lower mana cost and dodges most commander tax
Artifact Astrologian's Planisphere Job select (When this Equipment enters, create a 1/1 colorless Hero creature token, then attach this to it.) Equipped creature is a Wizard in addition to its other types and has "Whenever you cast a noncreature spell and whenever you draw your third card each turn, put a +1/+1 counter on this creature." Diana Equip Equipped creature is a Wizard in addition to its other types and has "Whenever you cast a noncreature spell and whenever you draw your third card each turn, put a +1/+1 counter on this creature." Diana Equip Artifact - Equipment Blue Mage's Cane Job select Equipped creature gets +0/+2, is a Wizard in addition to its other types, and has "Whenever this creature attacks, exile up to one target instant or sorcery card from defending player's graveyard
Stormcatch Mentor similarly reduces the cost of sorceries and instants by one generic mana while also having prowess and haste
This can feel awful from a play experience perspective, but Sejiri Shelter may help going forward
All sorts of disruption will prevent Skullclamp providing any card advantage as will poor deck design