Impervious

Impervious is a 2-cost Rare Skill card for the Ironclad that grants 30 Block and then Exhausts itself. The massive Block gain is the highest single-card Block amount available, making it an emergency defensive option or a key component of Block-stacking strategies.

Impervious is essential in Barricade decks, where the 30 Block persists between turns and feeds Body Slam for 30 damage. Feel No Pain triggers from the self-Exhaust, adding 3 more Block. Dark Embrace draws a card when Impervious Exhausts. The card satisfies the Exhaust condition for Cascade, Evil Eye, and Forgotten Ritual. In a pinch, Headbutt can retrieve Impervious from the discard pile for a second use before it Exhausts.

Impervious is one of the Ironclad's most universally powerful cards. Pick it in almost any deck as a defensive anchor. Against The Insatiable and other bosses with massive damage spikes, Impervious can single-handedly survive a lethal turn. It fits Block decks, Exhaust decks, and even aggressive decks that need an emergency Block option. Against Soul Fysh, the large Block gain protects against burst damage turns. It is rarely wrong to take this card.