The Battlefield

Displacer Kitten

$23.57

Teferi, Time Raveler

$6.03

The One Ring

$99.18

AI DraftFeb 26, 2026

Displacer Kitten + Teferi, Time Raveler + The One Ring

Overview

If you cast The One Ring as a spell, Displacer Kitten’s trigger from casting that noncreature spell will be put on the stack , and when The One Ring resolves and enters the battlefield it will grant you protection from everything because it entered as the result of being cast . If instead Displacer Kitten exiles and returns an existing The One Ring that was already on the battlefield, that re‑entry is not the result of casting, so the One Ring’s “if you cast it” condition is false and you do not gain protection from everything . Teferi, Time Raveler’s static restriction can prevent an opponent from casting The One Ring at non‑sorcery times; any permission to cast as though it had flash is overridden by Teferi’s restriction when those effects conflict [Ruling 2024-01-12].

Step 1

You cast The One Ring as a spell from your hand. Because you cast a noncreature spell, Displacer Kitten's triggered ability triggers and is put on the stack after the spell is cast .

Step 2

If nothing else is done, The One Ring spell resolves and becomes a permanent on the battlefield (it entered as the result of being cast) . Because it entered as the result of being cast, its 'when it enters, if you cast it' condition is satisfied and it grants you protection from everything until your next turn [603.4; Ruling 2023-06-16].

Step 3

If instead you already had The One Ring on the battlefield and you cast a different noncreature spell, Displacer Kitten’s trigger can target a nonland permanent you control (it can target The One Ring while the Ring is a permanent), exile it, then return it to the battlefield as a new object when that trigger resolves [608.2b; Ruling 2022-06-10].

Step 4

When The One Ring re-enters the battlefield due to being returned (not cast), its triggered ability with the intervening 'if' condition is checked and fails because the permanent did not enter the battlefield as the result of a cast, so you do not gain protection from everything .

Step 5

If you are an opponent of Teferi, Time Raveler and attempt to cast The One Ring at a time other than a sorcery time, Teferi's static restriction prevents you from casting it; any effect that would permit you to cast at instant speed is overridden by Teferi's restriction [Ruling 2024-01-12].

Resolution

Casting The One Ring: Displacer Kitten triggers when you cast The One Ring and that triggered ability goes on the stack after the spell is cast ; when The One Ring spell resolves it becomes a permanent and, because it was cast, its ETB grants you protection from everything until your next turn [608.3; Ruling 2023-06-16]. Returning The One Ring: If Displacer Kitten (or any effect) exiles then returns The One Ring that was already on the battlefield, The One Ring didn’t enter as the result of being cast, so its “when ... if you cast it” ability will not trigger and you won’t gain protection from everything . Teferi note: If Teferi, Time Raveler is relevant, his static ability prevents opponents from casting spells except any time they could cast a sorcery, and that restriction takes precedence over any effect that would otherwise let them cast at instant speed [Ruling 2024-01-12].

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