Magic Lampoon wrote an entire article about a 20 year old Stasis lock finally being broken to do growing economic conditions
If an opponent is attacking you, you can steal a different players board and trade off a bunch of creatures on both sides
It is such an efficient answer for early threats and some linchpins like Raffine, Scheming Seer

Accelerated Evolution Ademi of the Silkchutes Aegis of the Gods Airtight Alibi Akroma, Vision of Ixidor Alpha Authority Ancient of the Equinox Angelic Enforcer Angelic Overseer Angler Turtle Animus of Predation Aquatic Incursion Aquitect's Defenses Arboretum Elemental Arcane Lighthouse Archetype of Endurance As Luck Would Have It Ascended Lawmage Asceticism Atlantis Attacks Avabruck Caretaker Avalanche Caller Avatar Kyoshi Avatar Kyoshi, Earthbender Aven Fleetwing Barkhide Troll Basri, Tomorrow's Champion Bassara Tower Archer Bastion Inventor Battlefield Thaumaturge Beaming Defiance Bedrock Tortoise Belltoll Dragon Benthic Giant Bilbo's Ring Blacksmith's Skill Bleeding Effect Blinding Fog Blossoming Calm Blossoming Defense Bombadil's Song Bonds of Mortality Breaker of Creation Brilliant Wings Bristling Hydra Bulwark Ox Captain America, Super-Soldier Carnage Tyrant Celestial Armor Champion's Helm Chase Inspiration Chromium, the Mutable Cloudform Cold-Water Snapper Collective Resistance Conifer Strider Copper Host Crusher Cradle of Safety Cragplate Baloth Cren of the Spider Brood Cryptothrall Crystal Barricade Crystalline Giant Curator's Ward Dawn's Truce Dawnglade Regent Deeproot Pilgrimage Deeproot Waters Defend the Rider Deification Detection Tower Devil Dinosaur

What many dismissed as a passing fad has since gone on to become one of the most consistently successful international franchises, with dozens of cartoons, comics, video games and trading cards adding up to an estimated worth of around $15 billion