Niv-Mizzet, Parun is the third version of the Izzet guildmaster: the previous two versions were Niv-Mizzet, the Firemind and Niv-Mizzet, Dracogenius
Of course, there are more out there, but these particular cards really caught my interest because of the story behind them and the fact that I even owned a couple, which I still have to find
Antler Skulkin Ashiok's Skulker Chasm Skulker Deepfathom Skulker Expedition Skulker Fang Skulkin Gutter Skulk Gutter Skulker Hoof Skulkin Jawbone Skulkin Mistmeadow Skulk Shell Skulkin Skarrgan Pit-Skulk Skulking Fugitive Skulking Ghost Skulking Killer Skulking Knight
While it would be more exiting as a UB, UR or perhaps even a UW card it is a very interesting and powerful card with a lot more potential to still be unlocked
But by far, the most hyped part of the collection was a card (of course)