[ Ein S. Tein ]
Observation[UPDATED - 2026-07-06]
[TYPE]Haki Card
[PARODY OF]Albert Einstein
[CARD EFFECT]Sense opponents strength
[OBTAINMENT][Not published]
[WHY EQUIP IT]
Sense opponents strength
Lore
Ein S. Tein is an Observation Haki ability that makes the player able to sense other opponents' strength.
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[REAL-WORLD PARODY]
This card parodies Albert Einstein - part of the naming convention where cards reference renowned historical figures.
[EDITOR NOTE]
This page refers to an Observation Haki Card named after a parody of a historical figure, not a traditional NPC character. Exact values such as damage, cooldowns, HP, drop rates, and spawn timers stay pending until primary-source evidence confirms them clearly.
Frequently asked questions
What is the Ein S. Tein card in RELL Seas?
Ein S. Tein is an Observation Haki ability that makes the player able to sense other opponents' strength.
What does the Ein S. Tein card do in RELL Seas?
Sense opponents strength.
What Haki type is the Ein S. Tein card?
Ein S. Tein is an Observation Haki Card. You can equip up to 6 Haki Cards of a type at once to customise your build.
Who is the Ein S. Tein card a parody of?
Ein S. Tein is a parody of Albert Einstein.
