ice elementals are basically the same as the rock ones, they are tameable and they just look better. IF YOU TRY TAMING A LAVA ONE ON GENESIS KITE IT OUT OF THE VOLCANO FIRST! you can’t build a temporary trap in the volcano because it is a mission area and they take AT LEAST 50 cannon balls because these ones are X creatures. also sometimes you just cant feed them anything, its kinda glitchy with the lava ones. if one doesnt tame just retry with another lava elemental. the lava ones look really cool though so its worth it.
It's a bit silly that kibble tames it a lot better than rocks or sulfur because even in the dossier it says that it lives off of absorbing nearby rocks and minerals. So mabey they should make it so you have to feed them a rare mineral like obsidian what if they made it so you could tame one fast and with high effectiveness by giving one a few hundred or few thousand obsidian . or what if there kibble was made out of a combination of ores and minerals .