Destined on the stack is still a black instant with a converted mana cost of 2, and Lead on the stack is still a green sorcery with a converted mana cost of 4, but Destined to Lead, any time it's not one or the other, is a black and green instant sorcery with a converted mana cost of 6
All tongue-in-cheek commentary aside, being unblockable was a fairly uncommon ability back in the day which made Ma Chao a fairly complex design for its time
That being said, however, in the few days after launch, prices have absolutely crashed
Dauthi Voidwalker (Modern Horizons 2, 2021) Graveyard strategies are extremely strong in Commander and it can almost feel mandatory to pack some answers for them
Terra, Magical Adept Commander players shouldn't get all the fun, so here's a combo that'll work in Standard, and only takes two cards: Terra and Yenna, Redtooth Regent