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my basic suggestion is more interesting:
Blocks: slabs, stairs, pillars using concrete or terracotta.
Baby Dragon: generated by hatching the dragon's egg in the end using end rod as a source of heat.
Duck: you can find almost all biomes.
When posting suggestions, you are only permitted to include one idea (or closely-related group of ideas) per thread. This thread contains multiple unrelated ideas and is considered a wish list, which is not allowed.