With the dragons, Spike's status could be different. Dragons that used to look down on him might now be either more respectful or more hostile out of envy. Among the ponies, Spike would become even more of a novelty. Some ponies might ask him for rides or to help them reach high places. His relationship with Rarity could also be affected. She might be inspired to create new outfits for him to match his new look with wings.
One possible plot could be that Spike discovers some ancient magic in the dragon lands. This magic starts to manifest in a strange way, causing him to grow wings. At first, he's scared and confused, not knowing how to use them. But with the help of his pony friends like Twilight, he starts to learn how to fly. Along the way, he might face some challenges from other dragons who are jealous of his newfound ability.
Another theme might be friendship and forgiveness. His friends would probably have to deal with his greed and decide whether to forgive him and help him change.
Spike MLP Fanfic is a type of fan - made literature that focuses on Spike in the context of My Little Pony. Fans write these stories for a variety of reasons. Some might be huge Spike fans and want to give him more spotlight. Others might want to explore different storylines that could have happened in the MLP world involving Spike. It can range from humorous tales where Spike gets into comical situations to more serious and emotional stories about his place in Equestria and his relationships with those around him.
I'm not sure specifically which 'Spike Gets Greedy' MLP (My Little Pony) fanfic you're referring to. There could be many fan - created stories with that title or concept. Generally, it might involve Spike, the dragon character in MLP, showing greedy behavior which could lead to various adventures, lessons, or interactions with other characters in the MLP universe.
Twilight Sparkle would likely be extremely worried. Since she raised Spike, she would feel a deep sense of guilt, as if she failed to protect him. She might even blame herself for putting Spike in a situation where he could get hurt in the first place. She would probably rush to find a way to heal him, using all of her magic knowledge.
No. Suicide is a very serious and heavy topic. In the context of a My Little Pony fanfic, which is often associated with a more family - friendly and positive image, this kind of theme is not appropriate. It can be disturbing and have a negative impact on readers, especially younger ones who are fans of the original series.
He could meet other dragons. Since he is a dragon himself, it would be natural for him to encounter some of his own kind during his runaway journey. They might teach him about dragon culture and traditions that he doesn't know much about.
No, it's not a very common phrase. Most common phrases in the MLP fan community are related to positive aspects like favorite characters, shipping (pairing characters), or events from the show. This phrase seems rather negative and specific, so it's not likely to be something you hear often.