Secret Units Tier List in Anime RNG Defense
Secret rarity represents the absolute ceiling of Anime RNG Defense unit power—defenders so rare that pulling one redefines your entire account progression timeline. Secret units drop at odds exceeding billions to one, making each pull a legendary milestone worth researching before spending Crystals saved from Innovation City marathons and promo codes.
S-Tier Secret Rankings
Eisen (Secret, DPS) — The sole Secret-tier deployable unit currently available. Eisen features triple passive abilities generating massive boss damage that outscales every Epic and Legendary alternative. Drop rate approximately 1 in 650 billion plus. Eisen deletes boss phases on One Piece World that would otherwise require coordinated Gojo and Frieren burst windows. Full profile on the secret units page.
Pulling Secret Units
Secret units appear through standard rolling on any unlocked map with astronomically low probability. No dedicated Secret banner exists—every roll on Cursed High School, Innovation City, or One Piece World carries a microscopic Secret chance. Farm Crystals via world progression and AFK farm builds before marathon rolling sessions. Open Epic Boxes and Legendary Boxes from boxes and cursed fingers for supplementary odds.
Secret vs Epic Investment
Compare expected roll counts: Gojo at 1 in 387,000 versus Eisen at 1 in 650 billion. A player who rolls constantly for one month might acquire Gojo multiple times but will almost certainly not pull Eisen. Prioritize Gojo and Frieren through luck upgrades from the luck upgrade guide before treating Secret as a realistic goal. The roll calculator quantifies these expectations.
Secret Unit Team Compositions
Standard Secret core: Eisen for boss deletion, Gojo for AoE wave clear, Sailor Moon for support buffs, Frieren for secondary burst. Without Eisen, substitute Frieren and Luffy for comparable—though slower—boss clears. Detailed compositions on the endgame build guide and DPS tier list.
When Secret Pulls Happen
Community reports of Eisen pulls typically come from accounts with hundreds of millions to billions of lifetime rolls. AFK automation with auto-delete thresholds filtering below Rare maximizes roll volume. Luck potions and scrolls from potions and scrolls marginally improve odds but cannot overcome billion-scale probability. Celebrate Secret pulls as windfalls rather than expectations.
Is Secret Worth It for F2P?
Secrets dominate One Piece World leaderboard clears but require time investment measured in months of AFK rolling. Epic S-tier Gojo and Legendary Frieren clear all standard content until you accumulate extraordinary roll volume. Consult the full tier list, noob to pro guide, and guides library to decide when Secret chasing fits your timeline.
Future Secret Units
Developers may add additional Secret defenders through updates announced on Discord. When new Secrets launch, revisit this tier list alongside the unit database and unit tier checker. Existing Eisen holders benefit regardless—more Secrets dilute odds but Eisen's triple passive kit remains S-tier for boss content.
Secret Investment ROI
Calculate Secret return on investment before dedicating months to Eisen: hours of AFK rolling required, Crystal income per hour on Innovation City, potion costs for luck boosts, and content unlocked by Eisen ownership versus continued Gojo-Frieren performance. Eisen justifies investment for players targeting One Piece World leaderboard clears. Casual players completing Cursed High School may defer Secret chasing indefinitely without missing standard rewards.
Secret Unit Celebration and Roster Integration
Pulling Eisen changes your entire team dynamic—shift from Frieren-primary boss burst to Eisen-primary with Frieren as cooldown filler. Reconfigure placements on One Piece World to maximize Eisen passive uptime at boss spawn lanes. Announce Eisen pulls in Discord communities for strategy advice on stat rerolls via Kakashi using Gems from the currencies guide.
Even without Eisen, the endgame build remains fully viable. Secret tier is aspirational luxury, not mandatory progression gate.