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What if I'm addition to the options Fight, Bag, Pokemon, and Run, there were a 5th option called Defend.
Defend can only be used by each Pokemon 3 times per battle, regardless of switching out or recovering from fainting.
1st time: Damage is multiplied by x0.25 (Rounded up)
2nd time: Damage is multiplied by x0.5 (Rounded Up)
3rd time: Damage is multiplied by x0.75 (Rounded Up)
Defend may not be used while Perish Song is in affect.
Defend may not be used during or following a mega evolution.
Defend will cause the success rate of moves like Protect to go down the following turn.
Defend cannot be lifted by feint.
The main idea behind it would be that it acts as a sort of pseudo-protect, freeing up a move slot in double and triple battles. It would also allow for Pokemon to survive hits by Pokemon that have severely weakened abilities or offensive potential after an attack (such as Draco Meteor or Overheat) or survive hits by Pokemon that would be hurting themselves by recoil.
Broken? Gimmicky?