Kogla and Yidaro

When Kogla and Yidaro enters, choose one —
• It gains trample and haste until end of turn.
• It fights target creature you don't control.
{2}{R}{G}, Discard Kogla and Yidaro: Destroy up to one target artifact or enchantment. Shuffle Kogla and Yidaro into your library from your graveyard, then draw a card.

March of the Machine

When Kogla and Yidaro enters the battlefield, choose one —
• It gains trample and haste until end of turn.
• It fights target creature you don't control.
{2}{R}{G}, Discard Kogla and Yidaro: Destroy up to one target artifact or enchantment. Shuffle Kogla and Yidaro into your library from your graveyard, then draw a card.

March of the Machine Promos

You don’t have to choose a target artifact or enchantment for the last ability. However, if you do, and that permanent is an illegal target at the time the ability tries to resolve, the ability won’t resolve and none of its effects will happen. You won’t shuffle Kogla and Yidaro into your library and you won’t draw a card.