Spider/Creeper Crossbreed

The Spider/Creeper Crossbreed mob was added by mob fusion mod.

Fusion
They spawn naturally in Snow Biomes and rarely in others or can be manually fused when a creeper and spider come in contact.

Behavior
Spider/Creeper Crossbreeds are hostile, but attack in a unique way. They will latch onto their victims heads and explode with a precise direct contact. The explosion is powerful enough to kill a player with just a full row of hearts and quite possibly full diamond armor. They are so dangerous when they get a direct hit that it is advised to bring a bow and avoid getting in close-quarter combat.

FiskFille's official mob fusion profile: