Polygoyf

07/06/2024

Although the tokens enter the battlefield attacking, they were never declared as attackers. Abilities that trigger whenever a creature attacks won't trigger, including the myriad ability of the tokens. If there are any costs to have a creature attack, those costs won't apply to the tokens.

07/06/2024

Any enters-the-battlefield abilities of the copied creature will trigger when the token enters the battlefield. Any "as [this permanent] enters the battlefield" or "[this permanent] enters the battlefield with" abilities of the copied creature will also work.

07/06/2024

Card types that can appear on cards in a graveyard are artifact, battle, creature, enchantment, instant, kindred, land, planeswalker, and sorcery. Legendary, basic, and snow are supertypes, not card types; Lhurgoyf, Forest, and Siege are subtypes, not card types.

07/06/2024

Each token copies exactly what was printed on the original creature and nothing else. It doesn't copy whether that creature is tapped or untapped, whether it has any counters on it or Auras and Equipment attached to it, or any non-copy effects that have changed its power, toughness, types, color, and so on.

07/06/2024

If myriad creates more than one token for any given player (due to an effect such as the one Doubling Season creates), you may choose separately for each token whether it's attacking the player or a planeswalker they control.

07/06/2024

If the defending player is your only opponent, no tokens are put onto the battlefield.

07/06/2024

The ability that defines Polygoyf's power and toughness counts card types, not cards. If the only card in all graveyards is a single artifact creature card, Polygoyf will be a 2/3. If the cards in all graveyards are ten artifact cards and ten creature cards, Polygoyf will still be a 2/3.

07/06/2024

The ability that defines Polygoyf's power and toughness works in all zones, not just the battlefield.

07/06/2024

The term "defending player" in the myriad rules (or any other ability of an attacking creature) refers to the player the creature with myriad was attacking at the time it became an attacking creature this combat, the controller of the planeswalker the creature was attacking at the time it became an attacking creature this combat, or the protector of the battle this creature was attacking at the time it became an attacking creature this combat.

07/06/2024

The token creatures all enter the battlefield at the same time.

07/06/2024

You choose whether each token is attacking the player or a planeswalker they control as the token is created.