Hey fellow players! Welcome to the server! Hope you all are enjoying the server,  this thread is in order to help those players who are new to skyblock or aren’t familiar with the commands, Hope this helps you…
Player Commands

1)/island – generates a new island, opens the GUI or teleports the player to their island, home location or the team island
2)/island help – shows help text
3)/island go – teleport to your island
4)/island go <number> – teleport to a numbered island home (use /sethome <number> to set)
5)/island biomes – open the biomes GUI
6)/island cp or control panel – shows a GUI with useful commands so players do not have to type
7)/island expel – Removes a visitor from your island/island reset or restart – restarts an island. There is a cool down timer and a max limit on this so that players do not abuse it
8)/island lang – allows player to chose their UI language
9)/island level – ranks the island
10)/island level <player> – shows the island rank for another player
11)/island lock – locks an island so none can enter or teleport into
12)/island warp <name> – warps to a Welcome Warp Sign. The full name does not have to by typed in (just the first few letters)
13)/island warps – Lists warps that are available via Welcome Warp Signs
14)/island sethome <number> – sets a numbered home point, up to the max the server allows
15)/island sethome – sets your island home
16)/island settings – lists the game settings in a read-only panel
17)/challenge – Shows the GUI for challenges available to the play 

Team-Based Commands

1)/island invite – Invite a player to join your team. You can only invite one person at a time.
2)/island accept or reject – Accepts or rejects an invite. If a player has an island already and accepts, the island will be deleted.
3)/island team – lists info on the team
4)/island leave – leave the team – returns to spawn
5)/island kick or remove <name> – only available for the island owner or leader – removes a team member. If the player is online, all their inventory will drop and they will be sent to spawn. If they are offline, they will get a message when they log in that they have been kicked.
6)/island coop <player> – Gives a player temporary full access to your island. Notifies other team members and the leader when this happens. Use it wisely.
7)/island expel <player> – Removes coop status. Also ejects player from your island.
I hope this helped you, have a nice day!!!