Weapon of Power: As a blast ability, this would be a customizable weapon such as a sword or mace and firing blast of power. This occurred to me as a way to synchronize with blasters who are using the ninja training so they can fire blasts with the weapon in hand.
Weapon Assault, a powered weapon that fires blasts and can be used in melee.
Epic Power Pool:
Powered Weapon: A reason to get a lethal/elemental damage and have a cool weapon. It should come with a ranged attack, have a melee aoe, a single target melee attack, and a control ability. I can also see it having a non-toggle buff where it granted lethal/smash def for a short period of time. While I see this mainly being available to normally ranged ATs, I like the idea of including it for melee ATs too. Some of the power sets don't have great AoE and this could be an interesting way to augment it. It also allows a space for people to feel like their character has earned an interesting item to use.
Packed Heat: Perhaps I am too southern and American but I also like the idea of a pool where your hero literally got their own gun. While my first instinct is to say a rifle, it might be best as a single hand gun. It could come with a control ability fear affect of shooting in the air to startle enemies. Now obviously, the first criticism is temp powers and the second criticism is to just play a Blaster. First, you can't put slots on temp power or do a lot with them. Second, this is for new ways for melee ATs to get ranged powers that doesn't bend their theme of learning Mu Magic, Soul, developing eye beams, etc. For specifics, a ranged attack with lethal damage, a ranged cone, a PBAoE Fear affect, and a non-toggle buff called Armor Piercing that adds a -res for a short time to your gun attacks.