You cant be too far behind to use it and if your much ahead, you wont need it
Doing so gives that spell additional or alternative effects
Into the Inklands had two rules cards per pack, explaining the new Locations mechanic
Theres nothing wrong with Cubing with cards that are three or more colors, but they are absolutely trickier as a category than mono-color and two-color cards
For 2 mana, this Golgari spell can drastically swing the tempo of a game back into your favor when you use it to recover from your opponents removal
Deck boxes like the Ultimate Guard Boulders completely open up, which leaves you with two compartments to store your tokens, dice, counters, and other various things you might want to have close by during a match