A complex of Quests:
Quest 08: A Glimpse of Godhood.
Objective: Defeat a Fake God.
Reward: 1500 electrum coins.
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Quest 09: Aid the Oracle
Objective: Sell an upgraded version of the same card that the Oracle told your fortune with.
Reward: More Power! You begin all PVP games vs. other players that have conquered this quest with 2 of each type of Quanta already in your pool.
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Quest "10": Oracular Visions
Quests from this point on are given randomly by the Oracle. Each quest is assigned to a particular type of card won, and only has a 10% chance of being offered. Each quest MUST be completed before your next visit to the Oracle, or the reward is not given.If you win a Weapon: Master of Attack.
Objective: Defeat a False God in 12 turns or less.
Reward: Win an upgraded Weapon related to the Mark of the False God you played.
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If you win a Shield: Master of DefenseObjective: Defeat a False God with more than 150 HP remaining.
Reward: An upgraded Shard of Divinity or Gratitude (random).
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If you win a Dragon: Master of BeastsObjective: Defeat a False God with all 23 creature slots full and at least 5 different types of creature in play.
Reward: Your Pets are always the Dragons relevant to your Mark in PVP matches versus other players that have completed Quest 09.
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If you win a Nymph: Master of PurityObjective: Defeat a False God such that it has no creatures or permanents in play at the end of the game.
Reward: An upgraded Nymph of your choice.
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If you win an Alchemy card: Master of ChangeObjective: Defeat a False God with no creatures or permanents that match your mark in play.
Reward: Your Metamorphosis cost is reduced to 10 ep.
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If you win a Pillar: Master of FoundationsObjective: Defeat a False God with no pillars in play at the end of the game.
Reward: The Mark that you won the game with is permanently improved by one step (to a x2 Mark, then a x3 Mark if the quest is completed a second time. x3 is the max for any given Mark.) This applies only to PVP matches verus players that have completed Quest 09.
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If you win a Shard:
Master of DivinityObjective: Defeat a False God with exactly 1 HP and 0 cards remaining.
Reward: Your base HP goes up by 10. This number can never exceed 200, and this change only applies in PVP matches versus players that have completed Quest 09.
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If you win any other type of card:
Master of SigilsObjective: Defeat a False God with no creatures or permanents in play that do not match your Mark. Your Mark must match the element of the card won from the Oracle.
Reward: a Mark card (random).
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That should provide for lots of interesting high-level PVP play without adversely affecting new players or existing PvE challenge levels too much. It should also keep long-time players around much, much longer.