He has good control, is decently threatening has good additional defenses and will eventually provide crew for the Heart with his tokens
This makes it an essential consideration for many decks
She's just that rizzed up

Restock Notice The Lost Caverns of Ixalan Commander Deck - Explorers of the Deep Commander (1) 1 Hakbal of the Surging Soul Creatures (37) 1 Benthic Biomancer 1 Cold-Eyed Selkie 1 Coralhelm Commander 1 Deeproot Elite 1 Deeproot Historian 1 Emperor Mihail II 1 Evolution Sage 1 Herald of Secret Streams 1 Kiora's Follower 1 Kopala, Warden of Waves 1 Kumena, Tyrant of Orazca 1 Master of the Pearl Trident 1 Merfolk Cave-Diver 1 Merfolk Mistbinder 1 Merfolk Skydiver 1 Merfolk Sovereign 1 Merrow Reejerey 1 Metallic Mimic 1 Mist Dancer 1 Nicanzil, Current Conductor 1 Prime Speaker Zegana 1 Realmwalker 1 Sage of Fables 1 Seafloor Oracle 1 Singer of Swift Rivers 1 Stonybrook Banneret 1 Surgespanner 1 Svyelun of Sea and Sky 1 Tatyova, Benthic Druid 1 Thassa, God of the Sea 1 Thieving Skydiver 1 Tishana, Voice of Thunder 1 Topography Tracker 1 Tributary Instructor 1 Vorel of the Hull Clade 1 Xolatoyac, the Smiling Flood 1 Zegana, Utopian Speaker Artifacts (5) 1 Arcane Signet 1 Commander's Sphere 1 Simic Signet 1 Sol Ring 1 Swiftfoot Boots Enchantments (6) 1 Branching Evolution 1 Deeproot Waters 1 Hardened Scales 1 Kindred Discovery 1 Reflections of Littjara 1 Simic Ascendancy Instants (9) 1 Aetherize 1 Beast Within 1 Commit // Memory / 1 Growth Spiral 1 Inspiring Call 1 Quandrix Command 1 Rapid Hybridization 1 Ripples of Potential 1 Ruinous Intrusion Sorceries (6) 1 Bygone Marvels 1 Curse of the Swine 1 Explore 1 Kodama's Reach 1 Ravenform 1 Wave Goodbye Lands (36) 1 Alchemist's Refuge 1 Command Tower 4 Forest (0401) 3 Forest (0402) 1 Hinterland Harbor 7 Island (0395) 6 Island (0396) 1 Karn's Bastion 1 Llanowar Reborn 1 Mosswort Bridge 1 Myriad Landscape 1 Path of Ancestry 1 Reliquary Tower 1 Rogue's Passage 1 Secluded Courtyard 1 Simic Growth Chamber 1 Temple of Mystery 1 Temple of the False God 1 Unclaimed Territory 1 Vineglimmer Snarl Tokens (10) 1 Beast Token // Merfolk Token 1 Bird Token // Merfolk Token 2 Boar Token // Merfolk Token (0009 // 0005) 2 Copy Token 1 Frog Lizard Token // Merfolk Token 1 Map Token 2 Merfolk Token // Boar Token (0003 // 0009) Other (1) 1 Commander (1) 1 Hakbal of the Surging Soul Creatures (37) 1 Benthic Biomancer 1 Cold-Eyed Selkie 1 Coralhelm Commander 1 Deeproot Elite 1 Deeproot Historian 1 Emperor Mihail II 1 Evolution Sage 1 Herald of Secret Streams 1 Kiora's Follower 1 Kopala, Warden of Waves 1 Kumena, Tyrant of Orazca 1 Master of the Pearl Trident 1 Merfolk Cave-Diver 1 Merfolk Mistbinder 1 Merfolk Skydiver 1 Merfolk Sovereign 1 Merrow Reejerey 1 Metallic Mimic 1 Mist Dancer 1 Nicanzil, Current Conductor 1 Prime Speaker Zegana 1 Realmwalker 1 Sage of Fables 1 Seafloor Oracle 1 Singer of Swift Rivers 1 Stonybrook Banneret 1 Surgespanner 1 Svyelun of Sea and Sky 1 Tatyova, Benthic Druid 1 Thassa, God of the Sea 1 Thieving Skydiver 1 Tishana, Voice of Thunder 1 Topography Tracker 1 Tributary Instructor 1 Vorel of the Hull Clade 1 Xolatoyac, the Smiling Flood 1 Zegana, Utopian Speaker Artifacts (5) 1 Arcane Signet 1 Commander's Sphere 1 Simic Signet 1 Sol Ring 1 Swiftfoot Boots Enchantments (6) 1 Branching Evolution 1 Deeproot Waters 1 Hardened Scales 1 Kindred Discovery 1 Reflections of Littjara 1 Simic Ascendancy Instants (9) 1 Aetherize 1 Beast Within 1 Commit // Memory / 1 Growth Spiral 1 Inspiring Call 1 Quandrix Command 1 Rapid Hybridization 1 Ripples of Potential 1 Ruinous Intrusion Sorceries (6) 1 Bygone Marvels 1 Curse of the Swine 1 Explore 1 Kodama's Reach 1 Ravenform 1 Wave Goodbye Lands (36) 1 Alchemist's Refuge 1 Command Tower 4 Forest (0401) 3 Forest (0402) 1 Hinterland Harbor 7 Island (0395) 6 Island (0396) 1 Karn's Bastion 1 Llanowar Reborn 1 Mosswort Bridge 1 Myriad Landscape 1 Path of Ancestry 1 Reliquary Tower 1 Rogue's Passage 1 Secluded Courtyard 1 Simic Growth Chamber 1 Temple of Mystery 1 Temple of the False God 1 Unclaimed Territory 1 Vineglimmer Snarl Tokens (10) 1 Beast Token // Merfolk Token 1 Bird Token // Merfolk Token 2 Boar Token // Merfolk Token (0009 // 0005) 2 Copy Token 1 Frog Lizard Token // Merfolk Token 1 Map Token 2 Merfolk Token // Boar Token (0003 // 0009) Other (1) 1 0 results found

Think about this: The card wants you to play the long game, and it gives you the tools to stall by making zombies, affecting the board
You'll need the basic Pokmon in play before you can evolve it into Eelektross