Encounter artificial Future Pokmon such as Iron Valiant ex and Iron Hands ex
Heres a ranking of each deck, based on the extra value youre getting: While it may look like theres a huge difference in terms of value, its worth noting that there are no bad choices here
Z-Arc also can't be destroyed by opponents' card effects, and when it's in the pendulum zone, it prevents opponents from activating Xyz, Fusion, and Synchro monster card effects
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most green decks, in other words
Since it's a mana cheap instant, you can do this in response to targeted or sweeping removal to get cards, as a sacrifice or it can send something to your graveyard about to get exiled by Swords to Plowshares, or to get value out of a chump blocker about to die anyway