If a face-up card(s) you control is destroyed by an opponent's card effect: You can toss a coin and call it.
If you call it right, Special Summon 1 monster from your GY.
If you call it wrong, Set 1 Trap from your GY.
If this card in your possession is destroyed by an opponent's card effect: You can activate 1 of these effects;
● Special Summon 1 monster from your GY.
● Set 1 Trap from your GY.
You can only use each effect of "Just Flip a Coin" once per turn.