You can only play it when the right trigger (discarding the card from your hand) happens

BEST BOOSTER FOR COLLECTORSCollector Boosters are a shortcut to the coolest cards in a set, with packs full of Rare cards, shiny foil cards, and special alt-art, alt-frame cards SOAR TO THE TOP OF THE FOOD CHAINCollect more hard-to-find Bloomburrow cards with 5 cards of rarity Rare or higher and a total of 5 alt-border cards in every Collector Booster COLLECTOR BOOSTER-EXCLUSIVE TREATMENTSCollector Boosters are the only place where you may find extended-art cards, with up to 2 in every pack, and are the only place you may find a card with a special type of foil treatment PLAY A GAME THAT FUSES ART, STORIES & STRATEGYMagic: The Gathering is a collectible card game that weaves deep strategy with art and mechanics that explore the themes of a particular world and storywhether you want to play a casual game with friends, collect cool cards, or get competitive, Magic welcomes you to The Gathering Ravnica Remastered Ravnica Remastered collector boosters have good chances to land anime cards, with borderless rares at a rate as great as 50% for non-foils

Surprisingly enough, Awakening Hall is actually still one of the better options for this kind of effect, even if it pales in comparison to Rise
Whether its couples, teammates, or a pet and owner, Partner With serves a flavorful purpose that a generic partner does not
Zeus should really only be played when you can immediately pay his Boost cost and survive
Having access to more mana than your opponent and being able to spend it effectively is one of the quickest ways to create an advantageespecially when the creatures you deploy are difficult to block and often draw you a card when they enter