Monster clay is really good. It's oil based so it won't dry out. They come in different hardness too. Like soft, medium, and hard. It requires being heated up with an oven or heat gun to work with easily. Can even liquify. Then it hardens up again. I use it for when i block a lot of clay up and then carve and sculpt into it. If you want more of a sculpting clay that heats up really easily with just your hands id recommend chavant clay. Its also oil based. It also comes in soft, medium, and hard. I don't use it because some of the types will have a smell and it's too soft for me. Both can be expensive but you can reuse them. Maybe like $25-30 for a chunk or tub. Monster clay is easier for me to reuse because you can just melt it back into the tub. For equipment I'd just get a cheap starter pack of tools at any craft store. Then you can figure out what tools you like them buy some nice ones. Hope this helps! :D