Savanna

Spawning data tags simply contain a list of Biomes. If you're referring to this list for a Pokemon, please double-check if it has an Anti Condition or Anti Biome. Anti Conditions and Anti Biomes are a way to essentially state: not in this biome/condition, so you'll need to cross-reference them. For instance, if a Pokemon is set to spawn in is_ocean, but has an anti condition of is_cold, it will not spawn in cold oceans.

Our Pokemon spawns are generally based on default Cobblemon configurations with additions to allow the entire dex to spawn in all Minecraft biomes and supported biome mods. Most biome mods are supported such as Terralith, Oh Biomes You'll Go, Incendium, Better Nether, Gardens of the Dead, and The Bumblezone. Other biome mods may also be compatible, provided they label their biomes with data tags.

Savanna Biomes
minecraft:savanna	minecraft:savanna_plateau	minecraft:windswept_savanna
terralith:arid_highlands	terralith:ashen_savanna	terralith:brushland
terralith:desert_oasis	terralith:fractured_savanna	terralith:hot_shrubland
terralith:red_oasis	terralith:savanna_badlands	terralith:savanna_slopes
terralith:shrubland	wythers:granite_canyon	wythers:tropical_forest_canyon
wythers:tropical_forest