We can always reban it if it ends up being a problem, but odds are that it would be perfectly fine in the format
This card isn't without its downsides for sure
Look through your library and find two basic lands, reveal them, and put one onto the battlefield tapped and the other in your hand
SR Super Rare UR Ultra Rare SE Secret Rare UL Ultimate Rare PS Platinum Secret Rare CR COLLECTOR'S RARE Number 11: Big Eye X DARK Rank 7 [ SpellcasterXyzEffect ] ATK 2600 DEF 2000 2 Level 7 monsters Once per turn: You can detach 1 material from this card, then target 1 monster your opponent controls
9 Kaiju Monsters Decks that want to go first generally do so in order to set up a bunch of Monsters that can negate any cards you play in order to win
In fact, on many occasions, your only use for the Extra Deck will be to banish select cards from it for the effect of cards like Pot of Extravagance, without summoning monsters from it