The Rainbow Lake Retreat

{t}Add one mana of any colour.
{t}Create a Legendary green 3/5 Fox creature
called 'Marco' and a Legendary white 1/2 Cat
creature called 'Brenda'. At the beginning
of the next end step, you may remove them
from the game; you get an emblem which says
"Marco & Brenda live happily ever after"
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"I do" Foxy said to Kitty