I already mentioned how you can identify activated abilities by the fact that they contain a colon
You can play them as-is, of course, but you can also take them apart and add in new cards, take out ones you dont like and just generally experiment with them
#9: Orgg Much like Waterspout Djinn, Orgg was really big for its mana cost, based on 1990s standards
You can get combos like Dark Depths and Thespian's Stage or Urborg, Tomb of Yawgmoth and Cabal Coffers

Absolute Virtue Astrologian's Planisphere Cargo Ship Choco, Seeker of Paradise Cid, Timeless Artificer Combat Tutorial Dragoon's Wyvern Dreams of Laguna Edgar, King of Figaro Eject Emet-Selch, Unsundered Ether Gogo, Master of Mimicry Golbez, Crystal Collector Hades, Sorcerer of Eld Hope Estheim Ice Flan Ice Magic Ignis Scientia Il Mheg Pixie Jidoor, Aristocratic Capital Jill, Shiva's Dominant Kefka, Court Mage Kefka, Ruler of Ruin Locke Cole Louisoix's Sacrifice Magic Damper Magicked Card Matoya, Archon Elder Memories Returning Noctis, Prince of Lucis Omega, Heartless Evolution Qiqirn Merchant Quistis Trepe Relm's Sketching Retrieve the Esper Rook Turret Sage's Nouliths Sahagin Scorpion Sentinel Sephiroth, Planet's Heir Shantotto, Tactician Magician Shiva, Warden of Ice Sidequest: Card Collection Sin, Spira's Punishment Sleep Magic Stolen Uniform Stuck in Summoner's Sanctum Summon: Leviathan Summon: Shiva Swallowed by Leviathan Syncopate Tellah, Great Sage The Emperor of Palamecia The Lord Master of Hell The Lunar Whale The Prima Vista The Wandering Minstrel The Water Crystal Thief's Knife Tidus, Blitzball Star Travel the Overworld Ultimecia, Omnipotent Ultimecia, Temporal Threat Ultimecia, Time Sorceress Ultros, Obnoxious Octopus Valkyrie Aerial Unit Vivi Ornitier Xande, Dark Mage Y'shtola Rhul

In a matter of turns, a player suddenly has no deck