Could anyone give me the rundown of tix and what they are used for and why they are so popular here on jsp?

Thanks, I appreciate it and I definitely can provide a tip if I go that tix route

Tix —> Magic Event Tickets. 1 tix = 65 fg approx.

They are used to participe in event for the game : MTGO
1 tix = 1$ us
In other words, the ratio rate is pretty good to get fg’s imo. There are other plenty of games to make fg’s with but you gotta grind. MTGO you simply have to make an account (you gotta pay lile 10$usd) and buy tix then sell them for fg’s. Or you can buy tix with your fg’s and sell tix for real money. That’s about it

To sell tix do you also need to make an account ($10 cost)?

Is selling and buying tix with real money through the actual MTG website or third party ones?

Yeah you do need an account. Buying tix with real money and selling tix for real money. You can buy em from the app MTGO (When you will buy an account they will shoot you a link to download it). I'm not sure where you can sell them but I'm 100% sure you can sell them actually. There is probably a MTGO website where you can sell them. I found this one (Be aware I dont know if its a trusty website I just found it) https://www.mtgotickets.com/sell-mtgo-tickets