Skyblock is a gamemode where you spawn in the sky on a floating island and use limited resources to survive. ManaCube's Aztec and Oasis merged with MineVille's Fire & Water Skyblock gamemodes into one MEGA skyblock realm. With the update from 1.16 to 1.19, Skyblock has upgraded various features that you can view, participate in etc.
While on Manacube Skyblock, you find that players tend to have different goals. Some players aim to be rich with farms and grinders in order to compete for Leaderboards that payout cubits. Placing top on leaderboards can award you with 10-30 cubits depending on your placement.
Skyblock isn't just about being rich and competing for Leaderboards, you can also play normally or build a nice island. You can chose how you'd like to play Skyblock, the possibilities are endless. With the addition of Build Mode, you have unlimited access to a huge range of 1.18+ decoration blocks.
Manacube Skyblock has many features that will make your experience enjoyable. These include McMMO, Skyblock Regions, Minions, Island Upgrades and so much more! There are separate guides to all the features throughout the wiki to help you understand a feature.