Trap Sense

Effect: 

Even rogues whose backgrounds don't have anything to do with noticing, avoiding, or disarming traps have a unique knack for dealing with traps.

If a rogue's skill check involving a trap is a natural even failure, the rogue can reroll the skill check once. If a trap's attack roll against a rogue is a natural odd roll, the rogue can force the trap to reroll the attack once.

Adventurer Feat: 

The trap attack reroll can also apply to a nearby ally of the rogue as the rogue shouts a warning or acts to prevent the trap from hitting.

Champion Feat: 

You gain a +3 bonus to skill check rerolls you make against traps.

Epic Feat: 

You only take half damage from trap attacks.