To kill the easter boss, when he slams his fist down on the ground close to the player area, jump on the side pressure plates. The spike trap will stuck him and you'll do full damage
honestly I have nobody to test to see if it actually runs okay with more than just me on, because all of my friends are busy or have abandoned me and I have nobody to play with or enjoy life with. Also, the server should be up 24/7 barring something weird, so anytime.
Well, if you do, the modpack is All The Mods 3 Remix. You can find it on the Twitch launcher, or just the curseforge website. Make sure to get Remix, not the normal "All The Mods 3". I'd suggest setting Minecraft's max memory usage to 8192 or a bit higher. I also don't think it can support a lot of players, but a few should be fine. Server's IP is 158.69.225.171:25575