I wanted to put in nyx but it's sold out at my local store. Also wanted to put in new Liliana since she has good synergy with the deck (unearth) but way too expensive.
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turn 1 - soul warden/soul's attendant turn 2 - pridemate (+1) turn 3 - 3 soul wardens/soul's attendants 1st sw (+2), 2nd sw (+3), 3rd sw (+4) which is (+9) in one turn with pridemate already at 3 so 12 forces unlikely but feasible