I thought Sorcerer and Mage pawns were the most widely rented pawns?
If you want you Sorcerer pawn to be used alot, don't have elemental boosts.
Don't do. Fire Boon. Ice Boon. Lightning Boon etc. etc. That is a Sorcerer 101 No.No.
Don't give them spells that enemies have to walk into for a status effect to take place. Those are only well controlled when you the player is the Sorcerer that can determine the correct situation, instead of the Sorcerer pawn jumping in the heat of battle to unleash a Blinding Radius Fog. Quickest way for them to die, especially to stronger enemies.
If you are going for an elemental Sorcerer try to cover the bases with high level spells for out right AOE for e.g
High/Brontide or High/Fulmination.
Frigor.
Comestion or High Comestion.
Miasma.
Malestrom or Seism or Holy Boon ( if you are dead set on this )
High Voidspell
If you really, really want to go with a boon, go with Holy Boon always, but usually I don't recommend it.
As for the inclinations. Leave them blank. No Guardian, No medicant none of that nonsense, no Scather, just leave the fields blank, and usually they will stay behind and cast spells based on their enemy knowledge to assist the situation on sight.