Yamanaka Naiki has learned Doton. (Resolved)

Yamanaka Naiki has learned Doton by having 2 intelligence, 3 exp, and 4 control. You need a total of 5 exp, unless you have an intelligence of 2, which downs the cost of the elemental affinity to 3, which is the exact amount that Naiki has. Furthermore, you require 3 control for your first elemental affinity, and Naiki has 4.