Uncrackable is Wall-Knight's premium legendary plant signature superpower trick card in Plants vs. Zombies Heroes, and a member of the Guardian and Solar classes. It costs 1 to play, and its abilities shield Wall-Knight for the turn it is played, and give him a card.
- Classes: Guardian, Solar
- Tribes: Nut Superpower Trick
- Abilities: Your Hero can't be hurt this turn. Draw a card.
- Set - Rarity: Premium - Legendary
Wall-Knight laughs, "A thousand broken nutcrackers tell the story."
This can be best compared to Citron's Peel Shield. While Peel Shield is best used when all lanes are full of plants, Uncrackable is best used when the lanes are barren of plants and you need to stall a turn to land another hit while powerful zombies are present, like Zombot 1000. Therefore, this superpower is not recommended when Wall-Knight is guarded with enough plants.
Since this gives you a card as well, it can be used as a last resort to draw a card, although it is a waste unless you are about to take a lot of damage anyway.
When your opponent plays this trick, focus on destroying their plants instead. If there are little to no plants, save your powerful cards to strike back next turn.
- It and Nut Signal are the only nut superpowers in the game.
- Coincidentally, both are in the Guardian class and can be used by Wall-Knight.