Once the player reaches speed four, the "Max speed" abilities will be active
However, the downside to Pokmon ex cards is that, if defeated, they enable the opponent to the player who summoned them to draw two prize cards, instead of the usual one

Aboleth Spawn Abomination Abomination of Gudul Abomination of Llanowar Abyssal Gatekeeper Abyssal Gorestalker Abyssal Horror Abyssal Nocturnus Advanced Stitchwing Ahriman Ancient Cellarspawn Angel of Suffering Appendage Amalgam Arcbound Fiend Armaggon, Future Shark Arvinox, the Mind Flail Ashiok's Reaper Ashiok's Skulker Atraxa, Praetors' Voice Awoken Horror Balefire Liege Banehound Bedlam Reveler Blistergrub Bloodcurdler Boneshard Slasher Boneyard Lurker Braids, Arisen Nightmare Brainstealer Dragon Braska's Final Aeon Brokkos, Apex of Forever Bruna, the Fading Light Cabal Therapist Canker Abomination Captain N'ghathrod Carnival Carnivore Carnival Hellsteed Carrion Locust Cateran Brute Cateran Enforcer Cateran Overlord Cateran Slaver Cavern Whisperer Chained Throatseeker Chasm Skulker Childhood Horror Chittering Harvester Chittering Host Chupacabra Echo Clammy Prowler Cleaver Skaab Comet Crawler Conduit of Storms Consuming Aberration Core Prowler Corrupted Harvester Cosmic Horror Crawling Chorus Creakwood Liege Creeping Inn Cruel Somnophage Cruel Witness Crypt Lurker Cryptborn Horror Culvert Ambusher Cursed Monstrosity Cursed Wombat Dark Hatchling Dauthi Horror Deathbonnet Hulk Deathbringer Liege

If you don't believe me, then sit across from an Animar player as they use Animar to cast every Eldrazi you've heard of and then some
This may not seem very intuitive, but it can contribute to the storm count
Echoing Deeps Land Cave You may have Echoing Deeps enter the battlefield tapped as a copy of any land card in a graveyard, except it's a Cave in addition to its other types