...
Seems like people don't quite get what I'm talking about. I'll use a different example this time. Let's compare Joltik to Axew.
Axew is available after the 6th gym, starts off with Dragon Claw and gets DD one level afterwards. It's powerful enough to OHKO most pokemon after a DD, while Eviolite will help him get up a second, at which point he can sweep through anything but Steels. The reason why Axew is placed in Mid-tier, however, is the fact that it's available after the 6th gym, which is fairly late in the game. Now, look at Joltik. Galvantula's actually only useful once you get the Thunderbolt TM, which is later than the point when you can catch Axew. Not only that, but for a large amount of time (10+ lvls), it needs to waste a teamslot, not doing anything but leech XP off the rest of the team. So tell me, why is Axew in Mid, while Joltik is in high?