Instead, make them fight amongst themselves by letting them ruin each others board states

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 CONTENTS1 Bloomburrow Collector Booster containing 15 MTG cards and 1 Traditional Foil double-sided token

Mirrodin Besieged | Illustration by Bram Sels And thats for Mirrodin
Approach needs to be cast twice for you to win, and it has seen play as a win condition in control decks with lots of filtering, card selection, and scry/surveil effects
Savvy Trader's last ability can't reduce the amount of colored mana you pay for a spell