pokemon 25th anniversary booster box japanese Collection Containing a selection of Sword Pokémon TCG Sword & Shield

If two mirrors are facing each other, you put two +1/+1 counters on the creature, not an infinite number

One is Modern Horizons 2, which is set to release June 18 (see it on Amazon)

You may find it helpful to create a written record instead

Banished cards can only be brought back into play through the effects of specific monsters or spells

Puny Penguin X WATER Level 1 [ Aqua / Effect ] ATK 400 DEF 200 When this card is sent from the field to the Graveyard after being flipped face-up: Target 1 "Penguin" monster in your Graveyard, except "Puny Penguin"

The upside is, if you really want to include Kassandra and The Spear of Leonidas in your Modern deck, then you only need three or four copies of Kassandra, and just one of The Spear