Two swords get close enough to actually mess with each others' powers. The card's info says:
Swords of Countering Light
This card remains on the field for 3 of your opponent's Standby Phases. While this card is face-up on the field, face up "My Pearly Pony" and Shiny Pony-Type monsters you currently control cannot be targeted for attacks.
2 years, 1 month ago
15 Aug 2016 20:51 CEST
Full Size: 6a9801fcf3f0c4ecacd8a518d92bae82