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As Paradise Plume enters the battlefield, choose a color.
Whenever a player casts a spell of the chosen color, you may gain 1 life.
{T}: Add one mana of the chosen color.
An ability that triggers when a player casts a spell resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
If there’s somehow no color chosen for Paradise Plume, its middle ability can’t trigger and its last ability produces no mana. The former doesn’t trigger when colorless spells are cast and the latter doesn’t produce colorless mana.
