2 cards where the name is exactly “containment membrane”

Set № Name Cost Type R La Artist USD ▼ EUR TIX
PLST OGW-52 Containment Membrane {2}{U} Enchantment C EN Daarken ✪ $0.09 €0.07
OGW 52 Containment Membrane {2}{U} Enchantment C EN Daarken ✪ $0.02 €0.05 0.03

The message was clear to Sorin—time to search for something else.