They may look like Rainbow Monsters but are really just Gala (right) and Mocha Cream with partially swapped bodies. The card's info says:
OVMD-EN029:
Big Switch
Normal Trap
When an opponent's monster declares a direct attack: Special Summon 1 "Mocha Cream" from your Extra Deck, ignoring the Summon needs, and if you do, it becomes the attack target, but your opponent takes no battle damage this turn, also return "Mocha Cream" to your Extra Deck during the End Phase.
(Common)
Keywords
female
1,069,958,
pony
106,638,
mlp oc
9,535,
obese
7,996,
surprised
5,051,
pudgyville
3,833,
shocked
2,567,
support card
1,957,
card artwork
1,533,
booster set
998,
mocha cream
361,
gala
99,
overflowing meadows
60,
ovmd en
60,
big switch
1,
swapped body
1
Details
Published:
11 months, 2 weeks ago
15 Jan 2024 15:48 CET
Initial: de6f0f9e199222930eb5f0f9ff4457e3
Full Size: 056472aed5f058e63b9dfa7002b2cdea
Large: 7c28480b3a02444a8411daa8a61bafd7
Small: dfbb1197716c574320ffcefba8684347
Stats
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