As mentioned earlier, the best way is by casting your spells at instant speed, putting your creatures onto the battlefield without casting them, and stopping your opponents from casting multiple spells each turn
(4/17/2020) If you reveal a companion outside the game, for as long as it remains there, you may pay any time you could cast a sorcery (that is, you have priority during your main phase and the stack is empty)
But, before you start a run on the Walmarts and local card shops of the world, take note: this card wont be in draft or set booster packs but only in the slightly more expensive, English-language collector packs
While it's possible to include lands and MTG mana ramp spells in your Omniscience deck, the only reason to do so is to pump up a spell with a casting cost X, or to use an especially expensive activated ability
You can then take two of those cards and add them to your hand, not drawing, which is important in case youre looking to get around draw triggers
You get two options and both of them are great: either an enormous army of vampires, or a 10,000 power/ 10,000 toughness dinosaur, with trample, that spawns in already attacking one of your opponents
