Humility + Opalescence
Judge Level 2The layer endboss: two enchantments, and the answer depends on who arrived first.
Cards involved
The endboss enters
On the battlefield: Opalescence ("Each other non-Aura enchantment is a creature with power and toughness equal to its mana value") and Humility ("All creatures lose all abilities and have base power and toughness 1/1").
What happens?
Opalescence was there first, Humility came later.
What is Humility (mana value 4) now?
Pick an answer to continue.
The layer run: in layer 4, Opalescence makes Humility a creature. In layer 6, Humility strips all creatures of their abilities — including itself, but the effect that's already applying keeps applying (and Opalescence is NOT a creature — "each OTHER" — so it keeps its ability). In 7b, timestamp order applies: first 4/4 (Opalescence), then 1/1 (Humility). Result: 1/1 with no abilities.
613.7Within a layer or sublayer, determining which order effects are applied in is usually done using a timestamp system. An effect with an earlier timestamp is applied before an effect with a later timestamp.
613.6If an effect should be applied in different layers and/or sublayers, the parts of the effect each apply in their appropriate ones. If an effect starts to apply in one layer and/or sublayer, it will continue to be applied to the same set of objects in each other applicable layer and/or sublayer, even if the ability generating the effect is removed during this process.
The full run
Layer 4: Humility becomes a creature (Opalescence). Layer 6: all creatures lose abilities (Humility). Layer 7b in timestamp order: Opalescence sets P/T = mana value, then Humility sets 1/1 — the later effect overwrites.
613.4Within layer 7, apply effects in a series of sublayers in the order described below. Within each sublayer, apply effects in timestamp order. (See rule 613.7.) Note that dependency may alter the order in which effects are applied within a sublayer. (See rule 613.8.)
613.7Within a layer or sublayer, determining which order effects are applied in is usually done using a timestamp system. An effect with an earlier timestamp is applied before an effect with a later timestamp.
And the other way around?
If Humility was there FIRST and Opalescence came later, 7b flips: first 1/1 (Humility), then P/T = mana value (Opalescence) — Humility is a 4/4 with no abilities. Rule of thumb: in 7b, the later timestamp gets the last word.
613.7Within a layer or sublayer, determining which order effects are applied in is usually done using a timestamp system. An effect with an earlier timestamp is applied before an effect with a later timestamp.
Stack
Humility
All creatures: no abilities, base 1/1
Opalescence
Each other non-Aura enchantment is a creature (P/T = mana value)
The stack is empty.
Battlefield
—
In short
What is Humility under Opalescence?
Show answer Hide answer
The layer run: in layer 4, Opalescence makes Humility a creature. In layer 6, Humility strips all creatures of their abilities — including itself, but the effect that's already applying keeps applying (and Opalescence is NOT a creature — "each OTHER" — so it keeps its ability). In 7b, timestamp order applies: first 4/4 (Opalescence), then 1/1 (Humility). Result: 1/1 with no abilities.
613.7Within a layer or sublayer, determining which order effects are applied in is usually done using a timestamp system. An effect with an earlier timestamp is applied before an effect with a later timestamp.
613.6If an effect should be applied in different layers and/or sublayers, the parts of the effect each apply in their appropriate ones. If an effect starts to apply in one layer and/or sublayer, it will continue to be applied to the same set of objects in each other applicable layer and/or sublayer, even if the ability generating the effect is removed during this process.
613.4Within layer 7, apply effects in a series of sublayers in the order described below. Within each sublayer, apply effects in timestamp order. (See rule 613.7.) Note that dependency may alter the order in which effects are applied within a sublayer. (See rule 613.8.)