He used a card to steal control of the Revival Jam which made Slifer auto-attack it. When Slifer killed it, Strings had to draw cards. The Jam revived, causing Slifer to attack it, and Strings had to draw more cards. It looped until Strings lost due to his deck being out.
And this combo doesn't actually work in the real game. Revival Jam only revives if you pay a thousand life points and only does so on your next turn. On the other hand, I don't think Yugi's counter would work either because Card of Safe Return lets you draw a card when something is summoned from your graveyard. I would assume if you steal the Jam, it goes to your graveyard.
Nah, if you steal it and it is removed from the field it goes to the owner's graveyard
I'm unsure if it would be Yugi or strings who could choose to pay the 1000 Life Points to revive it though, I'd have to see the text and if it's a graveyard or a damage step resolution effect.
Because I care way too much, I looked up the rulings and it looks like it's a graveyard effect that can be activated at the end of the damage step.
The monster effect of "Revival Jam" is a Trigger Effect that is activated in the Graveyard.[1]
Its effect can be activated at the end of the Damage Step in which it was destroyed by battle and sent to the Graveyard.[1]
In any case, I assume Yugi wouldn't be able to revive it on his side because it wouldn't be in his graveyard.
Hmm, but would strings be able to? I know they have changed the rulings on a handful of cards from that point in the tcg over the years. ---