Consider its card type, any effect that affects when you could cast it (such as flash) and any other effects that could stop you from casting it (such as Meddling Mages effect) to determine if and when you can do this
It can be used to protect your combos, make sure your best permanents get cast, or to just shut down someone's turn entirely
Gandalf the White We know doubling enter abilities is very popular
3+ cmc ramp cards aren't as good because they don't bring her out any earlier than usual, but they still work fine if you want more ramp
If this was $30/$40, it would be even easier to recommend this drop, but its still great value at $40/$50, and I will at least be getting the max of foils on this
VICTORY CONDITIONS Please refer to these Official Rules to determine the outcome of a Duel 1