Key Spirit monsters that provide consistency include "Aratama", a monster searcher, "Nikitama" and "Sakitama", who grant extra Normal Summons to Spirits, and "Konohanasakuya", a Special Summon extender with a GY effect to let a Spirit monster stay on the field (by preventing its return-to-hand effect from activating)
Rafael was able to retain his soul after being defeated in a Seal of Orichalcos duel, he was able to see Duel Monster Spirits, and hes one of the select few who actually managed to defeat Yugi
This creates multiple different actions you can take almost any turn, leaving a lot of room to adjust your actions to go toe-to-toe with your opponent
These individuals purchase cards in bulk, only to mark up the prices and sell them for a profit
The Return Of Hercules can easily be slotted into the deck without having it be stuck in your hand, and can offer versatility and niche gameplay interactions in the early to mid game
If you pull it, flex it