Tengu format ruling
Pole Position

Card effect (current official text)The face-up monster(s) with the highest ATK on the field is unaffected by the effects of Spell Cards. When "Pole Position" is removed from the field, destroy the face-up monster(s) with the highest ATK on the field.
Rulings
(1) The face-up monster(s) with the highest ATK on the field is unaffected by the effects of Spell Cards. (2) When Pole Position is removed from the field, destroy the face-up monster(s) with the highest ATK on the field.
- The (1) Continuous-like Effect does not start a chain.
- The (1) Continuous-like Effect can become responsible for voluntary and involuntary infinite loops. Any voluntary action that would result in an infinite loop is simply an illegal action that players CANNOT perform. If an involuntary action (such as drawing a card during your Draw Phase) creates an infinite loop, the card responsible for the loop is destroyed by game mechanics.
- Example 1: Player A has a Gemini Elf, a Luminous Spark and a Pole Position face-up on the field. Since Gemini Elf is the monster on the field with the highest ATK, it is unaffected by Spell Cards. If Player B Summons X-Head Cannon, Luminous Spark will raise its ATK to 2300, making it the highest ATK monster on the field and causing it to become unaffected by Spell Cards, reducing its ATK to 1800, only for Luminous Spark's effect to once again increase its ATK to 2300, and so on. This voluntary action by Player B (Summoning X-Head Cannon) would create a voluntary infinite loop. Thus, Player B cannot Summon X-Head Cannon.
- Example 2: Player A has a Gemini Elf and an Opticlops equipped with an Axe of Despair face-up on the field, as well as a Set Ring of Destruction. Player B has a Blue-Eyes White Dragon and a Pole Position face-up on the field. If Player A activates Ring of Destruction to destroy Player B's Blue-Eyes White Dragon, then Opticlops would become the monster with the highest ATK on the field, causing it to become unaffected by Spell Cards (including the equipped Axe of Despair) and thus it will cease to be the monster with the highest ATK on the field and the effect of Axe of Despair will once again apply and raise its ATK, and so on. Therefore, Player A cannot target Player B's Blue-Eyes White Dragon with Ring of Destruction as resolving that card would create a voluntary infinite loop.
- Example 3: Player A has a face-up Opticlops and a face-up Gemini Elf. Player B has a Set Pole Position and no other cards. Player A activates Axe of Despair, selecting Opticlops as the target. If Player B voluntarily chains Pole Position, it will create a voluntary infinite loop upon the resolution of Pole Position and Axe of Despair. Therefore, Player B cannot chain Pole Position, nor can they activate it while those are the only face-up monsters on the field while Axe of Despair remains equipped.
- Example 4: Player A has a Pole Position and an Opticlops face-up on the field. Player B has a Muka Muka equipped with an Axe of Despair face-up on the field with no cards in his hand. Player B draws a card at the start of his turn, making Muka Muka's ATK rise to 1900. Since Muka Muka is now the monster on the field with the highest ATK, it becomes unaffected by the effects of Spell Cards. But once unaffected by the effects of Spell Cards, Muka Muka no longer has the highest ATK on the field. An involuntary infinite loop has been created by an action that could not be avoided. Therefore, Pole Position is destroyed by game mechanics.
- The (2) Continuous-like Effect does NOT start a chain. The monster is destroyed simultaneously with Pole Position being removed from the field.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Tengu forum — sourced change requests get reviewed.