Maybe Sun | Red Giant for card name?
And I can't help but to imagine a supernova happening when that card is destroyed.
Yeah, I thought about Red Giant but seeing this is a fantasy game, that name might be a bit misleading.
And yes, Supernova would be pretty cool. Unfortunately there's no room in the description field.
Ok, the planet now brings heat aka Fire. I'm still not happy about the name. I'm probably going to go with
Red Planet for unupped version because at first this new planet hasn't been named. Then when it comes closer (upped version), people have given it some name like Praxis IV or whatever.