So overall, I would rate this line a 2 out of 5, and would not recommend using either Doduo or Dodrio from this set in a deck
You must use a number of materials equal to the Link monster's Link Rating - the number on the bottom right corner
It also ensures youre curving out and playing an Energy every turn, to at the very least keep up with an opponent who is doing the same thing
You wont always need a board wipe, so you can always cast it for one of the cheaper modes if theres a problem that needs to be dealt with, but I definitely dont mind destroying all tapped creatures for six mana at instant speed
For example, if your opponent passes the turn with two black mana available, there's a good chance they have a copy of Heartless Act at the ready
In those, Congregate was awesome