Tough as Nails
Level 1: DEF +15%
Level 2: DEF +15.5%
Level 3: DEF +16%
Level 4: DEF +16.5%
Level 5: DEF +17.5%
Level 6: DEF +18% and
reduces damage received by 1%
Level 7: DEF +18.5% and
reduces damage received by 2%
Level 8: DEF +19% and
reduces damage received by 3%
Level 9: DEF +19.5% and
reduces damage received by 4%
Level 10: DEF +20% and
reduces damage received by 5%