Where would you put Wilbur on defense? Does he make a good tank?
Honestly, I can’t recommend using him on defense at all. An attacker could easily turn Wilbur’s special around to their benefit with a combination of Sonya (to dispel the defenders’ spirit link/defense buff) and Kiril (to turn the attackers’ spirit link/defense debuff into a spirit link/defense buff). If he’s the only 4* red you have, though, he’d likely work best in the left flank position.
Thanks now I can kill him. :
I don’t have Sonya or any of same effecties
Wilbur’s utility is in raid attacking and color stacking. There are several posts supporting this, and some with videos of all red teams beating teams in a couple turns due to the entire enemy team taking damage as if they were all weak to the matched color. Very fun / effective, and he has some really good interactions with Khiona and others.