Its attack, Abyssal Flames, does 30 +20 more damage for each energy card in your discard pile and it only costs a single Fire energy
Removing attacking threats is awesome, but if your opponent feels that this planeswalker or you are a threat, theyll accept the life loss
Used together, you can force your enemies to exhaust with an Amethyst card and then follow up with a Ruby rush to take them out
or generals like Sygg, River Guide and Cromat had ways to protect themselves baked into their design
The second ability is Warrior-specific, but it triggers for each Warrior that connects in combat, and the draw ability is completely optional, so you can opt out if you're low on life or close to milling out
The search results will quickly illuminate the set from which the card originates