Any sort of Overrun effect without a way to push damage through is always a little suspect, though, so I don't think this will be a serious player, but giving all your creatures +10/+10 is pretty iconic
But instead of using the reverse side of the card like similar spells do nowadays, there was different text printed upside-down on the bottom of the card
This gives me a one-mana spell thats good to get back in the late-game, when I can expect to be able to cast it with delirium (even if Ive temporarily broken delirium by returning too many cards)
excavate the top 5 cards of your Deck, you can add 1 excavated Spell/Trap to your hand, also send the remaining cards to the GY." [spoiler=Extra Deck] The Extra Deck is where you store Fusion, Synchro, Xyz and Link Monsters (Pendulums too, but they don't start there)
It's a pity that 15 EX Decks won't be enough when you start synchronizing again