@RyouguIt's the new summoning system and soon to be rulings for the official game that will change the huge advantage of going first. Link Summoning, which you should really read up on the wiki
This page and the ones related to it, is basically a way to slow down the usage of Extra Deck monsters as to not give people stupidly good boards; This way whoever goes first doesn't end up with a bunch of xyz/fusion/synchros with effects turn 1 that prevent the other player from playing the game, and by extension, enjoying the roleplay.
It also prevents Pendelum monster spam from the Extra Deck as well without a Link Monster being in play; But if you have the pend monsters in your hand, you can still special summon as many as you want without fret. Though the pendelum zones have been moved to the Spell and Trap zones, meaning if scales are in play, you only have three backrow zones; Which nerfs pends a bit, though beyond popular belief they are still some of the stronger monsters we'll see this format due to their still very prominent flooding potential.
I sound like a broken record, but bringing in the new rules is really good for the RP; As duels will last longer than four or five posts this way, without us purposefully having to make weak-ass decks. Though, I'm curious as to what we'll do to try and extend duels beyond just a few posts if Link Summoning loses the vote, a question I have to ask
@GarlandDaHero out of concern. As GM, s/he seems to have a good head on their shoulders; So I'm not extremely worried, but I'm actually looking forward to the changed game Konami has presented, and would like to test it out in a roleplay as practice for when I eventually have to bring a link summoning deck to locals~!