Four Horsemen Core Set
The Four Horsemen core set was the very first core set and the only one to come in 4-pieces varieties. The boosts now seem modest in comparison to some of the newer sets but nonetheless it is still widely used. This is partly due to the relative ease with wich you can acquire the cores and pieces. The 4 horsemen is a balanced attack and defense set.
You can see all the stats for the 4 Horsemen here.
Or load it into the core builder here.
Also see the secret recipes.