Attractions don't go in your main deck
While it does help us get up to 27 or 30 life to turn on our payoffs, and it is a "free" way to trigger Ajani's Pridemate and Heliod, Sun-Crowned, being colorless is a big downside and occasionally forces us to play things off-curve (especially Linden, the Steadfast Queen, with its triple-white-mana cost)
The best part of the spell is that you can cast it at instant speed, letting you drop Sphinxs Revelation at the end of your opponents turn or in response to an attack, letting you draw a bunch of cards or keep your life total up above the danger zone
In 1996, Wizards of the Coast established the "Pro Tour", [67] a circuit of tournaments where players can compete for sizeable cash prizes over the course of a single weekend-long tournament
It's ubiquitous, even when you're talking about something as simple as energy counters
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