Nearly every guide I've seen tells you to pick between heat rises and Icarus dash because they "don't matter". The remaining Aspect simply boosts your grenades but dawnblade does not have built in grenade ability recursion.
There are simply too many prerequisites involving the use of your grenade:
-You have to give up grenades to use a healing grenade
-Heat rises which is the main way to have slightly better accuracy in the air requires your grenade
-Phoenix dive requires your grenade to get some semblance of value from it
The only way to get grenade energy through solar 3.0 is benevolence, which only gives you about a quarter of your energy back, and that's only when you choose to give a nearby ally a buff/heal (which in many cases require your grenade in the first place).
I really think heat rises would have been better off using your melee to activate, slide melee into a phoenix uppercut that sends you into the sky would have been beautiful.
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It actually amazing me that Bungie seems to want the space wizards to use their abilities LESS than the other classes. Like we have a whole -blam!- Grenade-improving aspect for that subclass that is beyond out of place when paired with either one of the other two aspects because those two were essentially made for eachother. Like why buff up grenades when I have to consume one to even even edit from half my aspect anyways? On a melee kill would’ve been WAY better for heat rises. Healing off of the consumption does nothing to help at all. It should be multi kills in air that is a part of heat rises, and Icarus should’ve had a different added functionality such as scorching nearby enemies on activation or something like that. It makes no sense that if you can’t realistically stay in the air long enough for multikills consistently, how tf are you supposed to take advantage of healing off of multikills in air? “USE HEAT RISES WITH THIS” is plastered all over it. It makes no sense to use touch of flame with heat rises give the Grenade consumption, and it makes no sense to use it with Icarus dash since heat rises won’t be active to consistently stay in air. It’s ridiculous how poorly this was though out lmao.