Metacarpus Node [1HP307]

Whenever you play a card with an effect that deals arcane damage, you may pay {r}. If you do, that effect deals that much arcane damage plus 1 and at the beginning of the end phase, destroy Metacarpus Node. Arcane Barrier 1 (If your hero would be dealt arcane damage, you may pay {r} instead. If you do, prevent 1 arcane damage that source would deal.)