According to simulations run on different futures of Ignis and humanity, Revolver says that Lightning's is the only one that leads to mutual destruction.
And for each of Magnus Dux's Link Markers, 
I return a card in my graveyard to my deck.
Además devuelvo al deck
E para cada marcador de Link do Magnus Dux,
eu devolvo uma carta do cemitério para o meu deck.