Sure, you can jam the nine Nazgul in there (if you can find them!), but the reason people love this Commander is because it lets you play cheap instants and sorceries that would otherwise be medium at best and card disadvantage at worst
You may use the miracle alternate cost once the drawing of the card causes the miracle mechanic to trigger
This was almost always game-winning in Standard, and is only barely weaker in Commander
Instant Color tag templates(None) Plumb the Forbidden As an additional cost to cast this spell, you may sacrifice one or more creatures
For a just a 2-mana investment, you unlock a 1/1 body with a great enters-the-battlefield trigger
(Pairings will also be posted on paper at the judge station, so if the venue's signal is poor, go there to check.) Once you are seated, just like in domestic tournaments, both you and your opponent should confirm that the opponent's name matches the pairing on RK9