Attempting to value this card as "2 cost for 3 damage" (i.e. a Haymaker) shows a fundamental misunderstanding of Marvel Champions mechanics and valuation.

No, this isn't a "trash" card, it is a good (if situtational), low-cost way to have an on-demand, independent source of damage. A few folks have already mentioned its uses: plink off Tough, take out Ultron drones, or reduce Minion health for any number of card combos.

Do not underestimate that this card is Basic, so anyone can take it.

Do not underestimate that it remains on the table and is available as you need it.

Do not underestimate that you can utilize it when your Hero is exhausted.

Do not underestimate that as a Hero Action, you can use it on another player's turn.

Do not underestimate that you can use it even when your Hero is Stunned.

Do not underestimate that it a weapon and may be used with Mean Swing or Fusilade.

But no! It's a "trash" card because it does the same damage as a Haymaker over more turns. /s

Is it the best thing ever? No, but it is definitely useful and has its place for a number of specific Hero, Aspect, and Villain combinations. I think its biggest drawback is that it is Restricted, taking it off the table for most Heroes that come with Restricted weapons in their kit (Hawkeye's Bow, Mjollnir, Rocket's guns, etc).

I'm not going to write a full comprehensive review on this card; it's pretty awful. You're paying 3 resources for 3 damage over time, alternative to Haymaker. I guess the primary use is to pick off Tough with it and maybe a few other weird interactions. Almost all games recognize that damage over time needs to be higher than raw direct damage. I guess Plasma Pistol didn't get the memo.

With the exception of Iron Man; you're better off just running an Ally over this. Unless a 0 cost card released that doubled the charge counters on a weapon or attached to the weapon and doubled its damage, etc.; I don't see any driving motivation to ever run this.

I stand by most things that have been said about this card in the other reviews. It's not good, but people fail to realize that this card is situational. It's not an attack, therefore it ignores any restrictions on those effects, ignores retaliate, pings off tough cards for heroes with few attacks but high damage, and the restricted keyword is a non-issue for heroes that don't use other restricted cards. The damage is low, but it can save a dead turn for sure, and that 1 extra damage is never wasted. I feel like this is a very similar case to Resourcefulness, where you invest a resource + card to have another resource at hand for when you need it most. This is the same but with damage, and heroes like Iron Man get a ton of value out of it in the early stages of a game. Later on, you can use it as a resource and an energy card for powerful effects like Repulsor Blast and Captain Marvel's energy attacks. The main benefit of this card is that it's basic, so any deck can take it. It's never an auto-include, but the heroes that can use it well will get lot of value out of it.