I taught one of my Pokémon grass knot in a nuzlocke and unfortunately it died. I was planning to use it for E4. I was wondering if I can get another grass knot Tm to help me beat E4. Can anyone help with this?
Grass Knot can only be obtained by defeating Gardenia. You can trade a TM from another game (have a Pokemon hold the TM and trade it) or breed it down from a Male Parent (if the baby can learn it).
Source also this.
Hope I could help!