Check out the awesome action and dynamic duos in the Sun & MoonTeam Up expansion
Additionally, it has a cool interaction that allows you to cast it for only 6 mana most of the time via madness
While your opponents make what they think are fair trades, the second triggered ability turns you on to treasure and card advantage
Generally speaking, Magical Stone Excavation is a bad card because you're trading 3 cards (itself, and the two you discard) for just 1 card back, costing you 2 cards in the process, although this isn't true for all cards since the card One for One (quite ironically, a 2 for 1) will always generate advantage, despite technically always costing you a card since you could potentially summon something like Glow-Up Bulb which can recur from the grave at no cost your hand or field, effectively replacing the card you discarded for One for One while also (going back to point 1) progressing your gamestate by helping you make easy Synchros
Shiranui Splendidsaga [ATK 2300] 2+ Zombie monsters Synchro Monsters you control cannot be destroyed by card effects, also FIRE monsters you control cannot be destroyed by battle