Hangarback Walker [Kaladesh Inventions] Prophecy but if this card was

but if this card was Special Summoned by the effect of "Dark Mimic LV1"

"Long after the land has given up the last of its secrets

Set: Light of Destruction Card type: Effect Monster Rarity: Secret Rare Attack: 1100 Defense: 1900 During your Main Phase

They can be activated this turn

Set: Eternal Masters Type: Legendary Enchantment — Shrine Rarity: Uncommon Cost: {4}{G} At the beginning of your upkeep

Hangarback Walker [Kaladesh Inventions] Prophecy but if this card wasSet: Kaladesh Inventions Type: Artifact Creature Construct Rarity: Mythic Cost: {X}{X} Hangarback Walker enters the battlefield with X +1 +1 counters on it. When Hangarback Walker dies, create a 1 1 colorless Thopter artifact creature token with flying for each +1 +1 counter on Hangarback Walker. {1}, {T}: Put a +1 +1 counter on Hangarback Walker.