Mutalith Vortex Beast

Some models have 'Deadly Demise x' listed in their abilities. When such a model is destroyed, roll one D6 before removing it from play (if such a model is a TRANSPORT, roll before any embarked models disembark). On a 6, each unit within 6" of that model suffers a number of mortal wounds denoted by 'x' (if this is a random number, roll separately for each unit within 6").

Some models have 'Feel No Pain x+' listed in their abilities. Each time a model with this ability suffers damage and so would lose a wound (including wounds lost due to mortal wounds), roll one D6: if the result is greater than or equal to the number denoted by 'x: that wound is ignored and is not lost. If a model has more than one Feel No Pain ability, you can only use one of those abilities each time that model suffers damage and so would lose a wound.