Symmetry Sage

Any effects that modify a creature’s power without setting it to a specific value (i.e. ones that don’t affect base power) will apply after its base power is set, regardless of the order those effects were created. The same is true for counters that modify its power.

Each magecraft ability has a different effect, although they all have the same trigger condition, whenever you cast or copy an instant or sorcery spell.

Symmetry Sage’s triggered ability overwrites all previous effects that set the target creature’s power to a specific value. Other effects that set its power to specific values that start to apply after this ability resolves will overwrite this effect.