Best pet and best aura: still unanswerable
Four passes prove the pet economy exists (equip slots, storage, egg hatching, pet luck) and one proves aura rolling does — but no pet name, aura name, rarity, stat, or odd has ever been published for this universe. The first credible tier list will need those rosters; until then any “best pet” list online was borrowed from a different game. Watch the pets page and auras page; both lift their holds the day real data lands.
No team system — and no fake one
Nothing official or community-documented describes a team, lineup, or synergy mechanic. Progression is solo clicking, so the only “team” decision in this game is your purchase order — which is exactly what the tiered pass list above covers. The full mechanics table on the wiki hub keeps rebirth and worlds marked by their actual evidence level, including the community signals that keep them on watch.