1. What rules the game is played under;
2. What you mean by "development."
If development means capturing as much territory as possible, etc., then Dungeon with Shahti and a slightly slower, but no less "powerful" option – Necropolis with Galtaran – can be highlighted.
If development means a long-distance race with a couple of heroes, then Rampart with Kirre is interesting.
And if development means reaching level 7 in a castle in the first week, then Swamp and Barbarians are the best choices.
And of course, Conflux. These are starting units with a speed of 7, and then it depends on the rules of the game. By the third day, there MUST be at least 6 birds.

Орден Феникса – харизматический :) лидер