Circling back to TAUC costs, you could argue its actually even closer to free than other alternate costs: life points and cards in hand are expendable resources, and (at least for drawing cards) somewhat expensive to replenish
My opponent should find difficoult attack me with one creature per turn, and I can get time in order to mill my opponent
Of these prints, the first edition of Shadowless is considered to be the most valuable
As long as this card is on the field, each time a card is drawn, the player who drew it reveals the drawn card
Also, when you create cards that specify other cards in their requirements name-wise, it would be helpful if the cards involved can synergise with each other - i.e
"During your opponent's Standby Phase, while you control a face-up "Iron Chain" monster: your opponent must send cards from the top of their Deck to their Graveyard equal to the number of face-up "Iron Chain" monsters you control.") It's like Poisonous Chain's brother, I guess