The Hidden Agenda cards with a color in the casting cast pose interesting color restrictions
Theres also a mobile app that you can check out
You can also stop using it when you either need to conserve your life total or just dont need the boost anymore
Foundations introduced a rules change where ordering blockers now happens during the damage step

Advanced Search Sets Random Syntax Aboshan's Desire Advanced Hoverguard Aerie Mystics Alexi's Cloak Algae Gharial Arcane Lighthouse Argothian Enchantress Armored Guardian Aspect of Mongoose Autumn Willow Benthicore Blastoderm Blurred Mongoose Cairn Wanderer Calciderm Calcite Snapper Cephalid Inkshrouder Citanul Centaurs Cloak and Dagger Clout of the Dominus Control Win Condition (playtest) Crashing Centaur Crystalline Sliver Deadly Grub Deadly Insect Deep Spawn Deft Duelist Diplomatic Immunity Drill-Skimmer Eladamri, Lord of Leaves Elvish Lookout Empyrial Archangel Favorable Destiny Form of the Squirrel Fountain Watch Frost Raptor General's Kabuto Ghosthelm Courier Giant Crab Giant Solifuge Gigapede Gilded Light Glimmering Angel Glimpse, the Unthinkable (playtest) Greater Auramancy Hada Spy Patrol Hanna's Custody Hawkeater Moth Helix Pinnacle Hisoka's Guard Homarid Warrior Humble Budoka Indomitable Archangel Inkwell Leviathan Isleback Spawn Ivory Mask Jolrael's Centaur Kalonian Behemoth Kashi-Tribe Elite Kodama of the North Tree Lightning Greaves Mage's Guile Master of the Wild Hunt Avatar Minotaur Illusionist Mist Leopard Moniker Mage Morphling Multani, Maro-Sorcerer Mystic Veil Naya Hushblade Neurok Commando Neurok Stealthsuit

Youre not just buying booster packs , youre buying access to foil etched cards , extended art , flashy special treatments , and rare drops that feel like a personal treasure hunt every time you rip a pack