

At the start of your end phase, if this card is in your EX area, bury it.
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Deal 4 damage to each enemy leader. If there are at least 2 Mage followers on your field, put this card into its owner's EX area.
QI have an Agnes Tachyon on my field. If I play this spell's "At the start of your end phase" ability, does Agnes Tachyon's "Whenever you play a spell" ability trigger?
ANo. Playing automatic abilities isn't the same as playing a spell.
QIf there are 2 copies of this spell in my EX area, does each copy's ability trigger at the start of my end phase?
AYes, they do.