Minecraft 1.13 Snapshot 18w16a mod MCPE

Minecraft 1.13 Snapshot 18w16a mod MCPE will have a new type of custom world generation known as “buffet”. It is hinted that more is to come of this new terrain generation feature in future versions of minecraft 1.13.
Features:

New custom world type: Buffet.
Coral fans now generate naturally.
Drowned can sometimes be found inside ruins.
Turtle helmet will no longer give you particle effects.
Turtle helmet will no longer make you absolutely completely 100% invulnerable.
Blue ice is now ever-so-slightly less slippery than before. Still pretty slippery.
When water spreads and would later turn into a source block, it now immediately just places a source block.
Mining coral blocks now requires silk touch.
Changed particle effect from the Conduit.
Optimized spawn position finding code.
Technical: there’s now a distinction between scheduled “liquid ticks” and “block ticks”.
Technical: there’s new block & item tags for coral.
Lots of bug fixes.
Buffet worlds