The first upgrade to the Bear Trap category, it has an upgrade cost of 1500 gold.
Going from the Bear Trap (Rank C) to The Vacuum ( Rank B) has the following effects :
- Increases the MP cost from 200 MP to 350 MP
- Success % increases from 2% to 4%
- Hold per second increases from 3 seconds to 5 seconds
- Duration is not affected by the rank upgrade.