Okay, the original seemed broken to me, and it got improved? Tell me why I'm wrong.Pact of the Fiend is the one with Dark One's Blessing that grants temp HP when you reduce an enemy to 0 HP, and they also get Fireball spell (at character 5th level for spells of 3rd level). Mephistopheles would generally be an appropriate Patron for Pact of the Fiend
This is true for both 2014 or 2024 rules, where Dark One's Blessing is slightly better in 2024 (it also triggers when someone else within 10 feet reduces an enemy to 0 HP)
Temp HP each time you kill an enemy isn't very strong at all. Many fights are just one tough creature, or even if you're fighting multiple enemies you don't necessarily get the killing blow, and by the time enemies are dying you might already have the fight well in hand. Also it's not that many Temp HP. It's not a garbage ability but definitely not overpoweredOkay, the original seemed broken to me, and it got improved? Tell me why I'm wrong.
As for the other, a friend of mine, a mostly dm, was telling me that the Meph pact gave an ability that was basically fireball with a different name (orb something) as a second level spell. Maybe I heard wrong. I'll ask him next time I see him.
It's also 3rd level (so, no more nor less accessible than fireball), and isn't a Warlock spell, nor accessible through any official Warlock patrons.Whatever happened to Melf's Minute Meteors?
It is hard to respond to a generic "well it was broken before, so how is it not broken now?" question. I would need to know what part(s) of it you thought were broken. Are you referring to the Fiend pact THP? Given THP don't stack and the Warlock only gets them if she actually lands the killing blow, it's really not that much of an impact. Particularly because (from experience!) Warlocks are pretty squishy.Okay, the original seemed broken to me, and it got improved? Tell me why I'm wrong.
There is no specific "Mephistopheles" patron, so perhaps your friend was speaking of homebrew or 3PP?As for the other, a friend of mine, a mostly dm, was telling me that the Meph pact gave an ability that was basically fireball with a different name (orb something) as a second level spell. Maybe I heard wrong. I'll ask him next time I see him.
As you suggest, possibly a 3PP patron? Flaming Sphere is also 2nd level, and could be mistaken for fireball if you only read the name - and not available through official warlock channels.It's also 3rd level (so, no more nor less accessible than fireball), and isn't a Warlock spell, nor accessible through any official Warlock patrons.
Looked through my collection and the only non-official patron I found with Flaming Sphere at 3rd level was the Red Dragon patron from The Elements and Beyond.As you suggest, possibly a 3PP patron? Flaming Sphere is also 2nd level, and could be mistaken for fireball if you only read the name - and not available through official warlock channels.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.