If any of them have a triggered ability that triggers whenever a creature enters the battlefield, they'll trigger for one another
This card game would bring in new generations of players into the world of TCGs, which at that time was dominated by the ever-popular Magic: The Gathering
Death with Benefits ( Chasm Skulker, Dragon Egg, Rukh Egg, Roc Egg, Matter Reshaper, Sprouting Thrinax, Tuktuk the Explorer, Academy Rector, Aura Thief, Corpse Augur, Mindslicer, Reef Worm, Solemn Simulacrum, Archon of Justice, Seedguide Ash, Destructor Dragon, Deadwood Treefolk, Scuttling Doom Engine, Wurmcoil Engine, Symbiotic Wurm
Retard Tribal 3, the Retardening Creature (28) 1x Aesi, Tyrant of Gyre Strait 1x Amphin Mutineer 1x Arixmethes, Slumbering Isle 1x Brinelin, the Moon Kraken 1x Charix, the Raging Isle 1x Colossal Whale 1x Deep-Sea Kraken 1x Gilanra, Caller of Wirewood 1x Great Whale 1x Icebreaker Kraken 1x Imoti, Celebrant of Bounty 1x Kederekt Leviathan 1x Keruga, the Macrosage 1x Kinnan, Bonder Prodigy 1x Koma, Cosmos Serpent 1x Kruphix, God of Horizons 1x Nadir Kraken 1x Octavia, Living Thesis 1x Pursued Whale 1x Selvala, Heart of the Wilds 1x Sludge Monster 1x Spawning Kraken 1x Stormsurge Kraken 1x Stormtide Leviathan 1x Thassa, God of the Sea 1x Trench Behemoth 1x Tromokratis 1x Uro, Titan of Nature's Wrath Instant (5) Land (37) 1x Barkchannel Pathway Flip 1x Botanical Sanctum 1x Breeding Pool 1x Castle Garenbrig 1x Command Tower 1x Flooded Grove 1x Hinterland Harbor 1x Mosswort Bridge 1x Rejuvenating Springs 1x Reliquary Tower 1x Rimewood Falls 1x Simic Growth Chamber 9x Snow-Covered Forest 9x Snow-Covered Island 1x Temple of Mystery 1x Temple of the False God 1x Urza's Mine 1x Urza's Power Plant 1x Urza's Tower 1x Vineglimmer Snarl 1x Yavimaya Coast Artifact (8) 1x Commander's Sphere 1x Lightning Greaves 1x Proteus Staff 1x Quicksilver Amulet 1x Simic Signet 1x Skyclave Relic 1x Sol Ring 1x Thought Vessel Planeswalker (3) Commander (1) Sorcery (13) 1x Croaking Counterpart 1x Cultivate 1x Farseek 1x Oversimplify 1x Rishkar's Expertise 1x Selvala's Stampede 1x Skyshroud Claim 1x Tempt with Discovery 1x Tooth and Nail 1x Turntimber Symbiosis Flip 1x Unexpected Results 1x Whelming Wave 1x Windfall Enchantment (5) Maybeboard Creature (4) Sorcery (2) Suggestions Updates Add Comments Attention
Maybe Rofellos, Llanowar Emissary, but even then its significantly more powerful than a typical mana dork in the right deck
