How did you waste your rare TM?
I got a L20 exeggutor with BS/P which I used 4 charge TM to change P > SeB > P > SeB > SoB.
Another scenario was to TM Fire Blast, but kept getting Crunch (no single SE) for tyranitars which eventually not power up any of these crunch.
Lesson learnt...
Answers
If I can answer a follow up question. How many were you willing to waste to get what you wanted? 4? 6? As many as it takes to get what you want?
My tale is 3rd machamp: so far, cc-hs-cc-hs-cc.
I'm back up to 30 charge TMs and ready to try again but am thinking to just try 2x each time.
I'm anticipating I will have at least 2-3 more mons in which I really need only one of the choices available so could never afford to go 0 for 30 on something...
I had a 93% Moltres with just 13 ATK, but still my best, so I wasted 5 TMs so get Overheat on in. On the very last chance I unexpectedly catched a 91% one with 15 ATK and decided that it is probably more worthy to power up. Again, I wasted 5 TMs to get Overheat :D Currently, I'm not planning to push either.
I have much luck with Alakazam though, which always get Futuresight immediately.
This is what I did with my TM's:
Blissey Psychic > HB > Psychic > HB > DG
Golem RB > EQ (wanted SE. stopped right here because I was mad)
Espeon Psybeam > Psychic (wanted Futuresight)
Alakazam Focus Blast > Shadow Ball > Futuresight
Vaporeon WP > AT > WP > HP
Vaporeon WP > AT (wanted HP, stopped here because of above mistake)
2 Dragonites with SW/HB > DT/Outrage
Flareon FT > Overheat
3 Machamp with Heavy Slam > 2 DP & 1 CC (left CC as is)
Rhydon Megahorn > EQ
98% IV Moltres Heat Wave > Overheat (was screaming like crazy when I got it on the first try)
It was all going too well for me.
3xDragonite: HB>Outrage
Machamp: Submission>DP
Espeon: Psybeam>FS
Alakazam: FB>FS
Blissey: Psychic>DG
Then today, was trying to solo a Vaporeon and decided to get Solar Beam on my Venusaur. Went PB>Sludge>PB>Sludge>Solar Beam. And I failed to solo Vaporeon. All because I left one of my Exeggutors in a gym...