The first upgrade to the Foot Trap category, it has an upgrade cost of 3500 gold.
Going from the Stomp Trap (Rank C) to The Poison Toe ( Rank B) has the following effects :
- Increases the MP cost from 250 MP to 400 MP
- Success % increases from 4% to 5%
- Power increases from 30 to 50
- Duration is not affected by the rank upgrade.