In the past reprints came as a steady drip - sometimes too slow of a drip - but now they are a flood and even the best and most in-demand cards won't maintain much value they are reprinted multiple times
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)
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
If an Adventure spell leaves the stack in any way other than resolving (most likely by being countered), that card won't be exiled and the spell's controller won't be able to cast it as a permanent later
