Saviors of Kamigawa booster pack

The Kami War comes to a head with a bang: Wisdom, Channel, and Epic spells take your opponent down with ease.
Wisdom - As Kamigawa's Spirit war raged on, it became Clear that the route to victory wouldn't be mindless violence—it would be wise, thoughtful violence. To reflect this, the Saviors of Kamigawa set is filled with creatures and spells that get better the more cards you have in your hand. This magic takes different forms. Some cards, like Akki Underling, bulk up if you have seven or more cards in your hand. Others, like KitsuneBonesetter, only care about whether you're holding more cards than your opponent. Still more, like Soramaro, First to Dream, scale their effects based on the exact number of cards in your hand. Their strength varies with the size of your hand, but they all pack powerful magic in their veins.
Channel - Near the final days of the war, the veil between worlds became increasingly volatile. Kami with the Channel ability could focus their life essence into a one-shot blast of energy instead of solidifying into a creature. If you're holding Ghost-Lit Redeemer in your hand, you have a choice: You can pay to play it as a nice, normal creature . . . or you can pay and discard it from your hand to gain 4 life. You can Channel a creature whenever you could play an instant, and since this is an ability instead of a spell, regular countering spells can't stop it.
Sweeps - Some powerful spells can Uproot the land itself. When you play a spell with the sweep ability, you can return to your hand any number of your lands of the right type. The more lands you return, the more devastating the spell is. For example, when you play Sink into Takenuma, your opponent must discard a card for each Swamp you pick up.
Epic - In a realm where the creatures are legend, the spells must also be Larger Than Life. Spells with the epic ability are so extraordinary that once you play one, you can't play any more spells for the rest of the game. However, each time your upkeep starts, you get another free copy of the epic spell!