You want to make sure you are able to cast them from your hand as you build your land progressively, and you want to have a good chance of consistently pull the right spells
Slap it in any number of Rube Goldberg-style decks, or just in Reanimator builds
It's a place where memories and friendships are made
The time where effects like this shine is when your opponent's deck strongly relies on a specific card, and exiling all the copies of it removes their primary way to victory

A Real Handful Abomination of Llanowar Abomination, World Ravager Absolving Lammasu Achilles Davenport Agent Venom Agents of HYDRA Aggressive Symbiosis Agrus Kos, Spirit of Justice Akroma, Vision of Ixidor Alien Symbiosis Alley Strangler Alpha Deathclaw Altar of Bhaal Altar of Bhaal Amzu, Swarm's Hunger Angrath, Captain of Chaos Anikthea, Hand of Erebos Animus of Night's Reach Animus of Predation Aradara Express Arcbound Tracker Ardbert, Warrior of Darkness Ardyn, the Usurper Arm-Mounted Anchor Armed Assailant Armory Veteran Arnim Zola, Bio-Fanatic Aron, Benalia's Ruin Artillery Enthusiast Ashen Reaper Aspiring Champion Assault Intercessor Atarka Pummeler Atris, Oracle of Half-Truths Avalanche of Sector 7 Avengers: Under Siege Aya of Alexandria Ayara's Oathsworn Azula, Ruthless Firebender Balduvian Atrocity Baleful Beholder Baral and Kari Zev Barbarian Class Barbed Servitor Battlesong Berserker Beamtown Beatstick Bebop, Warthog Warrior Bedhead Beastie Belle of the Brawl Belligerent Sliver Belligerent of the Ball Bismuth Mindrender Biting-Palm Ninja Black Widow, Agile Avenger Black Widow, Daring Operative Black Widow, Double Agent Black Widow, Super Spy Blackbloom Rogue Blade of the Oni Bladegraft Aspirant Bladewing, Deathless Tyrant Bleeding Effect Blight Mound Blood Curdle Blood Researcher Blood-Chin Rager Bloodcrazed Socialite Bloodsky Berserker Bloodstone Goblin Body Dropper Bog Badger
