Abilities: Your Hero can't be hurt this turn. Draw a card.
Set - Rarity: Premium - Legendary
Card description[]
Wall-Knight laughs, "A thousand broken nutcrackers tell the story."
Strategies[]
With[]
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 like Zombot 1000 are present. Therefore, this superpower isn't recommended when Wall-Knight is guarded with enough plants.
Since this gives you a card as well, it can be used as the last resort to draw a card, although it is a waste unless you are about to take a lot of damage anyway.
Against[]
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.
Like Peel Shield, Uncrackable draws a card. Therefore, it is entirely possible for an AI opponent to play this card when the field is either empty or has very few fighters, helping you as the AI would waste this superpower.
Guardian and 
Solar classes. It costs 1
to play, and its ability shields the plant hero for the turn it is played and draws a card.
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Kabloom
Mega-Grow
Smarty
Solar