Dante is close combat strider and can grill most units close in few secs. It' s not univesral strider who can be built in any situation. Most games dante is used just one time. It also better works in small teams.
Dante is not good woth flea or d bag screen because its grilling unit. Every eskor just got burned.
There is several tactics which can be used.
1. You go all in with dante in enemy base/units. You retreat it when hp is low if its possible.
2. You play almost around napalm missile salvo. One salvo and retreat. And so and so. Its more works like 'look i have moving grill' - now rush counters for it.
3. You make suddent surprise for enemy using cloaker. Get closer dat unit ball and then unleash grilling power on them. Dats is popular from experienced player who know that enemy can disable or kill dante fast.
4. Troll play when you throw dante from transport or with lobster. It's 99% one way trip.
5. You don't know what to do in game so you build dante..
More then 80% dante is one way trip and most of it becomes metal donation.
Dante (especially alone) is perfect target for ultimatum because ultis can kill it with one shoot and retreat. Even scorpion is in better position. Same with lance. Vs porc dante is almost useless.
I would like to see buff for dante. 3,5k metalz is too much for strider who can be so easy countered. I think it should cost 3k metal like scorpion. However if there is no long range counter then dante just melt through everything.