Second, some of the cheap mythics (like Prossh, Skyraider of Kher) are actually pretty valuable in foil, since Masters 25 is their first foil printing and the primary demand for these cards is from Commander, and Commander players love their foils
If your opponent goes first, you can activate this Trap from your hand during their Standby Phase
A good rule of thumb is that the more resources your opponent has, the less drawing a card helps them, so if you are behind on cards this is likely worth activating
Put that enchantment on Pili-Pala with a Training Grounds out, and you have an infinite damage/card-drawing combo, pinging your opponents until either they all reach 0 life or you run out of cards to draw (if they don't counter the ability or prevent the damage)
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