Adventurer Tier: Reduce the attack penalty you suffer for wearing certain types of armor by 1.
Adventurer Tier: You gain a +5 bonus to saves against ongoing poison damage.
Adventurer Tier: Once per battle, at the start of your turn, you can declare to add the escalation die to all defenses instead of all attacks until the start of your next turn.
Champion Tier: You can use Combat Expertise at-will.
Adventurer Tier: You gain a +1 bonus to death saves.
Champion Tier: You die after the 5th failed death save or last gasp save, not the fourth.
Champion Tier: You gain a +1 bonus to AC against enemies engaged with you.
Adventurer Tier: Once per battle, you can make a flexible attack when you make an opportunity attack.
Champion Tier: You can make a flexible attack whenever you make an opportunity attack.
Adventurer Tier: Your ranged basic attacks deal your level in damage on a miss.
Note: The Ranger and other classes have this ability by default.
Adventurer Tier: Reduce the attack penalty you suffer from conditions such as daze, weakened or fear by 1 (usually from -4 to -3).
Adventurer Tier: Your critical hits deal 1d6 extra damage per tier.
Improved Unarmed Strike
Adventurer Tier: You don't suffer the standard -2 penalty to attack unarmed.
Adventurer Tier: Once per day, reroll any d20 check.
Adventurer Tier: You gain a +1 bonus to disengage checks.
Knack for Items
Adventurer Tier: You gain a +1 bonus to magic item power recharge rolls.
Adventurer Tier: Once per day, you can add the escalation die to one of your skill checks. Choose after you roll the check.
Champion Tier: You can use Save Escalation once per battle.
Adventurer Tier: You can wield a shield (+1 to AC for most classes) without taking an attack penalty.
Adventurer Tier: Once per battle, when fighting with two weapons, reroll a natural 1-5 on your melee attack roll, not only 2.
Adventurer Tier: You can use Dexterity instead of Strength for attack and damage with one-handed melee attacks.
Adventurer Tier: Choose a weapon type, such as one handed heavy melee weapon or small thrown. You deal 1 extra damage with weapons of that type. Increase to 2 at 5th level, and 3 at 8th.