If “ Macro Cosmos” and “ Imperial Iron Wall” are both on the field, you cannot send “ Imperial Iron Wall” to the Graveyard to Summon “ Trap Eater”, but you can send “ Macro Cosmos” to the Graveyard to Summon “ Trap Eater”. Trap Eater: You cannot Summon “ Trap Eater” by sending “ Macro Cosmos” to the Graveyard, since “ Macro Cosmos” will not allow cards to be sent to the Graveyard.Solemn Warning: You can negate the activation of Macro Cosmos with this card.If you send “ Archfiend of Gilfer” equipped to “ Power Tool Dragon” to the Graveyard during the middle of a Chain, or in the middle of an effect resolution, then you cannot activate “ Archfiend of Gilfer” and reequip it, because you missed the timing. Power Tool Dragon: If “ Macro Cosmos” is active, you can still send an Equip Spell Card to the Graveyard to protect “ Power Tool Dragon.” If a Chain resolves with “ Power Tool Dragon” being destroyed, and you send “ Archfiend of Gilfer” equipped to “ Power Tool Dragon” to the Graveyard instead, you can activate the effect of “ Archfiend of Gilfer” and re-equip it to a monster on the field (including “ Power Tool Dragon”).Morphtronic Rusty Engine: This effect starts a chain, when the equipped monster is destroyed and “ Morphtronic Rusty Engine” is sent to the Graveyard (or removed from play due to “ Macro Cosmos”, etc.).Morphtronic Remoten: If “ Macro Cosmos” is active, you can send a card to the Graveyard for the Defense Position effect of “ Morphtronic Remoten,” but the effect to add a monster to your hand will not resolve.Magic Planter: You cannot send “ Macro Cosmos” to the Graveyard to pay the cost of “ Magic Planter,” since “ Macro Cosmos” is preventing you from sending cards to the Graveyard as costs.Machina Fortress: If “ Macro Cosmos” is active you won’t be able to discard “ Machina Fortress” as part of the cost to Special Summon the same “ Machina Fortress” because it will be removed from play.So you must either pay the reveal cost, or destroy the monster. Iron Core of Koa'ki Meiru: While “ Macro Cosmos” is active, you cannot send “ Iron Core of Koa'ki Meiru” to the Graveyard to pay the cost of keeping your “ Koa'ki Meiru” monster on the field.Faustian Bargain: You can activate ' Faustian Bargain' while cards like ' Macro Cosmos' are in play, however you cannot Special Summon the Normal Monster from your hand because you did not actually send the target Special Summoned monster to the Graveyard.

Archlord Kristya: If ' Macro Cosmos' is active and your face-up ' Archlord Kristya' would be sent from the field to the Graveyard, it will still return to the top of the owner's Deck.

Yugioh macro cosmos banned