During trap creation, the character chooses which traps to prepare with metaconstruction feats (and thus which ones take up higher-level trap slots than normal).
In all ways, a metaconstruction trap operates at its original trap level, even though it is prepared and cast using a higher-level trap slot. Saving throw modifications are not changed unless stated otherwise in the feat description.
Metaconstruction feats cannot be used with all traps. See the specific feat descriptions for the traps that a particular feat can’t modify.
Multiple Metaconstruction Feats on a Trap: A trap user can apply multiple metaconstruction feats to a single trap. Changes to its level are cumulative. You can’t apply the same metaconstruction feat more than once to a single trap.
Feats are summarized on the table below. Note that the prerequisites and benefits of the feats on this table are abbreviated for ease of reference. See the feats description for full details.
The following format is used for all feat descriptions.
Feat Name: The feat’s name also indicates what subcategory, if any, the feat belongs to, and is followed by a basic description of what the feat does.
Prerequisite: A minimum ability score, another feat or feats, a minimum base attack bonus, a minimum number of ranks in one or more skills, or anything else required in order to take the feat. This entry is absent if a feat has no prerequisite. A feat may have more than one prerequisite.
Benefit: What the feat enables the character (“you” in the feat description) to do. If a character has the same feat more than once, its benefits do not stack unless indicated otherwise in the description.
Normal: What a character who does not have this feat is limited to or restricted from doing. If not having the feat causes no particular drawback, this entry is absent.
Special: Additional unusual facts about the feat.
||—||Increase trap variables by 50%.
||Metaconstruction||—||Double trap duration.
||Metaconstruction||—||Treat a trap as a higher level.
||Metaconstruction||—||Increase maximum damage dice by 5 levels.
||Metaconstruction||—||Maximize trap variables.
||Metaconstruction||—||Creatures who saved against a trap must save again.
||Metaconstruction||—||Affected trap treats creatures with SR as having an SR of 5 lower.
||Metaconstruction||—||Double trap area.