I had started with an interest in more ephemeral creatures that I could boost, taking the big powers and giving them trample (if they did not already have it). Some of that remains, but really it is far more now about haste and trample, though there are some more interesting things I could be doing with both. I went for a balance between cheap creatures and power, and I am not yet sure I found the right mix. The 20/9/6/5 curve averages 1.90, but it should be noted that the Ghor-Clan Rampagers are primarily for use for their bloodrush ability, which is less expensive.