If you want a mage without a tele, I'd recommend BW, Kinesis, BT, or even Illium (You get a pseudo glide) based on what is fun. Unfortunately I actually like teleport and I would be against throwing all mages a FJ.
In Reboot it kinda would, if anyone joins Reboot its often recommended to make a Kanna as your first character, for meso farming and whatnot. Also, bots will just move to a different class (I.E. Ark) or hoard up a bunch of Kanna accounts during creation...making the issue still present. It will end up likely hurting legit players more than the botters.
to 1. There is an NPC in Henesys you can toss CS items into, or right click on them in the Cash shop inventory there shoudl be a "delete" key.
2. Perm tele rocks and such are rare commodities from past events, and I believe its POSSIBLE to get in Marvel? Correct if wrong, I don't roll Marvel Machine.
3. Ill stick with fusion anvils. Sorry, I just don't like the idea of fusing a cash item onto a non-cash (Your example was a transparent hat, which woudl cover your Fafnir hat by default if equipped).
Reboot 1. No, I like mesos, but that rate seems broken as hell.
2. Also broken. Making Reboot overpowered would hurt anyone who wanted to play a normal server and would likely cause a lot of anger from the Regular server community.
3. No. Flames feel fine to me as they are.
4. No, the HP to exp is meant to be a part of why the mobs GIVE more exp. (In the olden days, not sure if the equation still holds true, but Mob HP and EXP scaled pretty closely. LHC mobs had very high HP, so people would train there before nerfs, same with SDH, HoH, and other old Party Play maps.)
TLDR: You want to make Reboot too powerful, and that's coming from a Reboot player. While there is a power gap between Reboot and Normal servers, this just makes it look silly to play a normal server if you have 1/2 off Star forcing (usually a Sunny Sunday perk) and 20x Meso drop? The only thing Rebooters really suffer from is damage penalties compared to regular servers (EX: Morass at 230 is a nightmare even with good range.) Which ultimately gets fixed by...well leveling up both AF and your character.
