This is why you ideally want your big Legendary cards to have an immediate effect
Some Equipment is also automatically attracted to Legendary Creatures, so if youre paying attention and in one round, I was you can play Cloud and have him enter with 2+ Equipment immediately attached
It's strong everywhere, but it has enhanced value in archetypes that care about counters generally, +1/+1 counters specifically, proliferate tricks for multicolor brews looking to add loyalty counters for their planeswalkers, four and five-color decks, Commanders with evasion, Commanders with a power that, when increased by 1 get a faster kill, Equipment, Aura, and Voltron decks looking to get in kills with their Commander, and loads more
Damage will still be dealt to an indestructible creature, but it won't die to state-based actions
What if your opponent has more removal they can cast in response, though
Incubation Druid: If you can get a quick +1/+1 counter on it, insane mana production is here