Pack 1 Pick 1 Serra Angel? This is the cube for you. Like magic in its early days the cube has metric tonnes of interaction, strange, surprising combos, and truly suspicious win conditions.
And though most of the cards are Old-School legal, some newer gems are included to bolster classic strategies.
Strategies such as:
Suicide with Dark Ritual, Hatred, Flesh Reaver, and Death's Shadow to take advantage of all that life loss.
Polymorph & Oath with classic enablers like Verdant Touch to get that Verdant Force on the field to stabilize.
Food Chain Goblins with Lackey, Squee the Immortal, and Goblin Ringleader to get your whole deck on the field.
En-Kor Control with Warrior en-Kor, Cho-Manno Revolutionary, Voice of All, even Pariah to really make combat math miserable.
Artifact Agro with Atog, Extruder, Su-Chi, Serrated Biskelion, and a cheeky Phyrexian Colossus should Tinker or Transmute Artifact make its way into your deck.