Store Mode

All play halts when Store Mode is cast. Any damage or blocking in progress that has not been dealt is now zero. All players may only execute their draw phase for the next round. Discard and draw down as normal.
As an additional cost, Store Mode may be cast using {4} plus one each {w}, {u}, {b}, {r}, {g}. If Store Mode is cast in this way, the number of draw-only rounds increases by the number of unique land types used to pay the additional cost.