First is Athena, the unobtainable. Clearly the best blue hero, but not currently available.
We now have three similar, excellent sniper blue 5*: Magni, Arthur and Alasie.
Magni 793 A, 591 D, 1334 HP 420% strike
Alasie 739 A, 706 D, 1336 HP 462% strike
Arthur 709 A, 725 D, 1320 HP 468% strike
Which puts the A*strike at 3,331, 3,414, and 3,318 respectively. So Alasie is clearly the hardest hitter (though well below the leader in that stat, Lianna, at 3,732). Note that Magni’s tiles will do much more damage, though.
So then it comes down to specials.
Magni’s shield is very strong (63%) and saved my bacon many times.
Arthur”s special is tailor-made for titans. One target affected, one hero defended.
Alasie’s mana control is very helpful, though not overwhelming like Hel’s. She was much stronger when first released, but down-ticked for release. Mana control requires intelligent deployment, though, and I’m not betting on the AI to do that well.
Overall, these are all excellent heroes. Arthur is clearly tops for titans. I think Magni is best on defense of the three, and Alasie best on offense. But it’s all close.