A simple list.
I
think I got the numbers right.
3) Your starter herald will determine the primary faction for that army. Any out-of-faction units will incur an additional cost to summon.
For example, if Sir Corwin is selected for the starter herald, the primary faction for that army will be Kingdom. This is important as any non-Kingdom unit in that army will cost the greater of 20%+1 or 4 extra mana at the least.
1 => 5
8 => 12
10 => 14
12 => 16
14 => 18
18 => 22
20 => 25
24 => 29
26 => 32
30 => 37
36 => 44
40 => 49
42 => 51
48 => 58
52 => 63
56 => 68
60 => 73
62 => 75
66 => 80
So yeah, what units do you consider good for cross-factioning because they're worth the extra cost?
yum_tea