This one is fairly simple, but I recommend doing this achievement in a solo session because solo sessions let you use the crystal statues for respawning (as opposed to having to be revived in a co-op game with the ragdoll physics post explosion - but if that way works better then use it). Once setting your respawn point at a crystal, blow yourself up with bombs or the mines found throughout the biomes. After dying you will respawn and NEED TO SET YOUR SPAWN AT A DIFFERENT CRYSTAL, this is important because the crystal you had originally put your spawn at breaks, post-respawn and you will now need to find another.
BE CAREFUL WITH YOUR BOMBS AROUND THE IDOLS (CRYTSALS), THEY CAN AND WILL BLOW UP AND BREAK