pile et ephemere

613.1. The values of an object’s characteristics are determined by starting with the actual object. For a
card, that means the values of the characteristics printed on that card. For a token or a copy of a
spell or card, that means the values of the characteristics defined by the effect that created it. Then
all applicable continuous effects are applied in a series of layers in the following order:
613.1a Layer 1: Copy effects are applied. See rule 706, “Copying Objects.”
613.1b Layer 2: Control-changing effects are applied.
613.1c Layer 3: Text-changing effects are applied. See rule 612, “Text-Changing Effects.”
613.1d Layer 4: Type-changing effects are applied. These include effects that change an object’s
card type, subtype, and/or supertype.
613.1e Layer 5: Color-changing effects are applied.
613.1f Layer 6: Ability-adding and ability-removing effects are applied.
613.1g Layer 7: Power- and/or toughness-changing effects are applied.
613.2. Within layers 1–6, apply effects from characteristic-defining abilities first (see rule 604.3), then
all other effects in timestamp order (see rule 613.6). Note that dependency may alter the order in
which effects are applied within a layer. (See rule 613.7.)
613.3. Within layer 7, apply effects in a series of sublayers in the order described below. Within each
sublayer, apply effects in timestamp order. (See rule 613.6.) Note that dependency may alter the
order in which effects are applied within a sublayer. (See rule 613.7.)
613.3a Layer 7a: Effects from characteristic-defining abilities that define power and/or toughness
are applied. See rule 604.3.
613.3b Layer 7b: Effects that set power and/or toughness to a specific number or value are applied.
613.3c Layer 7c: Effects that modify power and/or toughness (but don’t set power and/or toughness
to a specific number or value) are applied.
613.3d Layer 7d: Power and/or toughness changes from counters are applied. See rule 121,
“Counters.”
613.3e Layer 7e: Effects that switch a creature’s power and toughness are applied. Such effects take
the value of power and apply it to the creature’s toughness, and take the value of toughness and
apply it to the creature’s power.