Argos currently have a 3 for 2 offer on Lego Dimensions.
Includes Fun, Level, Team and Story packs.
The only really good prices are on 4 fun packs however, which are at £8.99 each so makes them £6 each.
Doc Brown (BTTF)
Sensei Wu (Ninjago)
Cyber Man (Dr Who)
Some other fun packs are £12.99 including some of the more recent ones (Knightrider, Batman, Adventure Time etc.) then the rest at the normal £14.99
Level and Team packs are more or less normal price (£27.99 - £29.99) so don't offer a good deal really.
Story Packs are better bought from Smyths as Argos have then priced higher:
Fantastic Beasts £39.99