Magma Dragon

When in melee units with this special rule count as having caused +D3 wounds when determining who won the combat.

Once per round, models with this special rule may either deal 3 automatic hits with AP(1) when fighting in melee, or to one enemy unit within 12" when shooting.

The hero may ignore the Slow rule.

Models with this special rule must accumulate X wounds before being removed as a casualty.

If a model with Tough joins a unit without it then you must remove regular models as casualties before starting to accumulate wounds on the model with Tough.

When a unit with multiple Tough models takes wounds you must accumulate them on a single model until it is killed before starting to accumulate them on another.