Even though you can keep casting Alien Symbiosis from the graveyard, it costs you a whole card each time, so you lose out no matter what
Imagine dropping multiple 2/1 Eldrazi Mimics turn 1
Decklist: Foretell in Pioneer Ranar the Ever-Watchful | Illustration by Kieran Yanner Creature (8) Karfell Harbinger x4 Cosmos Charger x4 Instant (10) Saw It Coming x4 Behold the Multiverse x4 Depart the Realm x2 Sorcery (14) Doomskar x4 Alrund's Epiphany x4 Ravenform x2 Starnheim Unleashed x4 Enchantment (4) Land (24) Hengegate Pathway x4 Gates of Istfell x3 Glacial Floodplain x3 Island x8 Plains x6 This deck has since rotated out of Standard, but it serves as a sort of proof of concept for how a controlling foretell deck might operate
With cards, people already know the characters to some extent, and they have personal feelings and attachments from playing the games, so you have to make sure there's no disconnect between the pieces and people's expectations
From there, every sacrificeyours or your opponentsmakes Zodiark stronger with +1/+1 counters
Destroy any permanent for just 3 mana, and the opponent only gets a harmless 3/3 elephant in return