I find the changes to Dante in this hotfix is overly detrimental to the experience of Dante's gameplay. A tl;dr of what I want is to make Dante lean more into status priming to deal damage, as his kit and passive all leads into this direction. Undo Tragedy LoS check but rather have it more effective against "primed" targets. Have Light Verse Overguard reverted back to 500 or give it some new function. I am happy with the change with Triumph, as the regeneration is fairly significant. It gives the ability some identity outside of existing means of generating Overguard.
I can see how a relatively easy to access nuke can be problematic, but LoS is a kneejerk reaction. Perhaps lean more into the Lavos-like function, so Tragedy deals significantly less damage to enemies with no status on them but increases to how it is on enemies who are affected by a lot of statuses. Perhaps reduced the damage (e.g. 1200, to be comparable to similar abilities like T. Sunder) but the proc detonation deals significantly more damage (e.g. 3.5x, I don't think this is unreasonable as if you have toxin, heat, and slash). As Dark Verse applies Slash, this makes tragedy feel much more like you setting up a big spell instead of banking two casts in your down time and popping it by jumping into the air with reckless abandon to nuke a group of enemies. If making the use of the ability more engaging, do consider making the damage more reliant on setting up statuses instead of LoS.
If the notion that a 30m AoE without LoS around Dante is too much, at least make it a smaller AoE (let't say 15m) but we launch it like a fireball, so like a AMD we don't need to precharge it with weapon damage but rather prime enemies with slash/heat/toxin status.
For Light Verse, I think this is a bit too harsh. I see Light Verse to be more a panic button as we already have Triumph for our Overguard. Thus Light Verse should keep its 500 base so it just provides a bit of protection and healing in emergencies, if stacking Overguard is a concern, have it be duration based. Alternatively, instead give Light Verse some new function which can work off the smaller OG amount, like a one off "double Overguard-gate" so that this effectively a mini Mesmer skin on OG break (since he already makes himself invul for 1s, just make this part of the Overguard mechanic). This creates a use case where a ally is low health, this ability then grants them a pillow such that they don't immediately melt after being healed. For a healing ability, it's hard to justify a low OG amount given that healing is already very accessible. Just give Light Verse a use apart from Overguard or Healing as both are already very accessible (notably OG from Triumph).
In contrast with the previous, I am actually interested in this change. As I think having the ability work more like a regenerating shield as opposed to already existing means of slapping tons of Overguard on allies gives Dante a unique identity. I see this as Dante's version of Rally Point, but with overguard instead of shields. I think base 100G/s is a great choice as it makes it comparable to Rally Point 50 shield per kill. So even if maximum Overguard isn't too high, being able to recover it quickly makes up for it. This more or less follows what I would want from Light Verse, where a low amount of initial Overguard is compensated by something else.