Interestingly, player elimination in The Binding of Isaac: Four Souls isnt as harsh as it initially sounds
This is great when we have Superior Energy Retrieval to recycle the energy right back to the hand
Decks these days are greedy with mana and draw plenty of cards anyways, so sinking two of their mana to draw a card feels decidedly tame
When a monster on the field is shuffled into the Main Deck, or becomes an Xyz Material, it is no longer a card on the field
In the late 90s, the Pokmon Company put on an event called the Parent/Child Mega Battle, where kids teamed up with their mothers or fathers and battled each other for true familial supremacy
As a creature, it's also easy to blink and reuse the enter-the-battlefield trigger