Ok here are some tests I did on a Ironshell in front of Norg as NIN/BST checking out subtile blow. Hitting the shell then charm it and imediately check tp. I had utsemi up for all test where I have been hitting it - so it didnt gain TP from hitting me:
I am Level 75 and have 5 Merits into Subtile Blow - so that is always taken into account:
3x Double Strikes - 6 Attacks using 227 Delay HQ Stun Katana: Ironshell 34TP
3x Double Strikes - 6 Attacks using 227 Delay HQ Stun Katana - adding Rashas Ring: Ironshell 31TP
3 Strikes using 420 Delay Great Katana: Ironshell 28TP
3 Strikes using 420 Delay Great Katana - adding Rashas Ring: Ironshell 26TP
Hitting it with 3 NI Elemental Spell: Ironshell 21TP
Hitting it with 3 NI Elemental Spell - adding Rashas Ring: Ironshell 19TP !
Getting hit by the Ironshell once: Ironshell 6TP
WHM hitting Ironshell once using a light staff: Ironshell 12TP
This gets us to:
- Spells ARE affected by Subtile Blow
- The base TP given to an enemy depends on the delay of the weapon you are using
- The TP things get by hitting you is nothing compared to the TP that a THF can give to the enemy or multiple melee going frenzy
- Subtile Blow is "Anti Store TP" - Every Level of Subtile Blow will reduce the TP you give by 0.1
- I know using Stun Katanas I can hit an enemy with 9 Double Blows and one Single Strike before it gets 100 TP to be able use a TP move. (Assuming I dont get hit by blink tanking or it has TP regen or it just ignores TP)