The Battlefield

Rosie Cotton of South Lane

$0.21

Scurry Oak

$1.65

AI DraftFeb 26, 2026

Rosie Cotton of South Lane + Scurry Oak

Overview

When Rosie Cotton of South Lane enters the battlefield, its ETB ability creates a Food artifact token (Food is an artifact token, not a creature) [Ruling 2024-11-08]. The Food entering does NOT trigger Scurry Oak’s evolve because evolve only looks for creatures entering . The Food’s creation does trigger Rosie’s “Whenever you create a token…” ability, which can target Scurry Oak and put a +1/+1 counter on it [Ruling 2023-06-16]. Putting that +1/+1 counter on Scurry Oak then triggers Scurry Oak’s ability that may create a 1/1 Squirrel token; that Squirrel entering will itself trigger Rosie’s token-created ability again and may also cause Scurry Oak’s evolve to trigger depending on comparisons of power/toughness at that time [Ruling 2021-06-18].

Step 1

Rosie Cotton of South Lane enters the battlefield; its 'When Rosie Cotton enters, create a Food token' triggered ability is put on the stack.

Step 2

That ETB ability resolves and creates a Food token. Food is an artifact token and not a creature [Ruling 2024-11-08] .

Step 3

Because a token was created, Rosie’s triggered ability 'Whenever you create a token, put a +1/+1 counter on target creature you control other than Rosie Cotton' triggers; place that trigger on the stack .

Step 4

When that Rosie token-created trigger resolves you may target a creature you control other than Rosie (you can target Scurry Oak) and put a +1/+1 counter on it [Ruling 2023-06-16].

Step 5

Putting one or more +1/+1 counters on Scurry Oak causes Scurry Oak’s triggered ability 'Whenever one or more +1/+1 counters are put on this creature, you may create a 1/1 green Squirrel creature token' to trigger; put that trigger on the stack.

Step 6

When Scurry Oak’s create-Squirrel trigger resolves, a 1/1 Squirrel token is created; when that Squirrel enters the battlefield it causes Rosie’s token-created ability to trigger again, and it may also cause Scurry Oak’s evolve to trigger if the Squirrel’s power or toughness is greater than Scurry Oak’s at the time of the evolve comparison [Ruling 2021-06-18].

Step 7

Each time a Squirrel is created, you get another Rosie trigger that can put another +1/+1 on Scurry Oak (or another creature), and each time counters are put on Scurry Oak it can produce another Squirrel, producing a repeating chain unless the controller chooses different targets or otherwise interrupts the sequence.

Resolution

Sequence outcome: Rosie’s ETB trigger resolves and creates a Food artifact token (not a creature) [Ruling 2024-11-08]; Scurry Oak does not get an evolve trigger from the Food because evolve cares only about creatures entering . Rosie’s triggered ability “Whenever you create a token…” triggers when the Food is created and can target Scurry Oak (or another eligible creature) to put a +1/+1 counter on it [Ruling 2023-06-16]. When that +1/+1 counter is put on Scurry Oak, Scurry Oak’s “Whenever one or more +1/+1 counters are put on this creature…” ability may create a 1/1 Squirrel token. When the Squirrel enters, Rosie’s token-created ability triggers again (and Scurry Oak’s evolve will trigger only if the Squirrel’s power or toughness is greater than Scurry Oak’s at the comparison time) [Ruling 2021-06-18]. Repeating this while always targeting Scurry Oak with Rosie’s token-created trigger yields a repeating chain of triggers (Rosie puts counters → Scurry Oak makes Squirrels → Squirrels trigger Rosie again). Each iteration is a triggered-ability-resolution sequence under normal rules; the controller can break the chain by choosing different targets or choices when those abilities go on the stack.

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