Benthic Arrayshell

Whenever an Abyssal creature you control
becomes blocked by a Surface creature, its controller loses 1 life and you gain 1 life. (All non-
Abyssal creatures are Surface creatures.)

It slowly crawls along the ocean floor. The network of
fine threads attached to the arrays on its back serve to ensnare small creatures. It folds up its arrays
regularly, after which nutrients from caught prey are absorbed through the membranous skin on its back.