So, with Tales of Middle-Earth finally releasing on June 23, we get the chance to see just how big it can be
Mass removal is often your only way back into the game
Its just cardboard

Scientists Aang's Defense Aang, Master of Elements Aberrant Abeyance Abomination of Gudul Abundance Abundant Growth Abzan Banner Abzan Beastmaster Abzan Charm Academy Elite Academy Loremaster Academy Wall Academy at Tolaria West Accumulated Knowledge Aclazotz, Deepest Betrayal Acquisition Octopus Acrobatic Maneuver Action News Crew Adrestia Advancing the Spirit Adventure Awaits Adventurer's Airship Aeon Chronicler Aerial Extortionist Aesi, Tyrant of Gyre Strait Aether Channeler Aether Spellbomb Aether Syphon Aetherflux Conduit Afflict Afterlife Insurance Age of Ultron Agency Coroner Agent 13, Sharon Carter Agent Maria Hill Agent Venom Agent of Treachery Agent's Toolkit Aggressive Urge Agna Qel'a Agonasaur Rex Ahriman Air Nomad Legacy Airbending Lesson Airborne Aid Airship Crash Airship Engine Room Ajani Fells the Godsire Akroma's Blessing Akroma's Vengeance Aladdin's Lamp Alandra, Sky Dreamer Alaundo the Seer Alchemist's Apprentice Alchemist's Vial Alhammarret's Archive All-Fates Scroll All-Seeing Arbiter Alms Collector Alpharael, Dreaming Acolyte Alphinaud Leveilleur Alquist Proft, Master Sleuth Altanak, the Thrice-Called Altar of the Wretched Altar's Reap Amass the Components Ambition's Cost Ambling Stormshell

Humpherys says they discussed whether battles could simply be enchantments or lands, but that conceptually what we were aiming for just didnt really make sense as any existing card type. WOTC hopes that battles will be playable right out of the gate, with Humpherys also telling us that other design teams have already expressed interest in potentially using them as part of future sets
But this hits hard and synergizes well so you could do worse