I'm trying, but the only other one I have isn't good for me outside of nature mono.
I have two Grankawagamon SP right now. Stats before LB:
Atk 397 Def 369
Hp 327 Sup 428
My Gokuw LB2 stats before LB:
Atk 564 Def 276
Hp 397 Sup 336
It'll be a pain to pull two more because I can't effective farm tickets, but stat difference when equal level:
Atk -67 Def +94
Hp -70 Sup +92
Pretty even, so it would be viable.
Add in Tyrant now. Grankuwaga's stats when same level:
Atk -18 Def -33
Hp -99 Sup+137
Sup might make up for the health lost, so pretty close again.
Tyrant main skill is damage to one enemy. Leader is 1/2 damage.
Grankuwaga main skill is +2. Leader is large delay to enemy attack.
Both would be decent for leader or grunt slots.
The way I'm looking at it is I can probably pull 3 Grankuwaga before 2 Gokuw devolution. I already have all 5 Tyrants though.
Tyrant stats when same level to Gokuw:
Atk -49 Def +127
Hp +29 Sup -45
Pretty even, but add the damage skill over a completely useless one since knights already hit nature for 1/2 damage.
Add an other +100 to everything, because it might take me months to MLB Gokuw, and I'm going to work him as soon as I get my next holy done.
If I'm going to put in all that time for a better nature, and have +2 covered already, I'm not too worried about Grankuwaga or his +2 for my main team.
Damn, that was a long reply. I think the point was supposed to be that I'm not really pulling any +2s, but I'm trying.