experience in mind when playing Duel Links, don't automatically assume that everything in Duel Links will go the same way as you remember it in the TCG or OCG -- keep an open mind
P/T Number 111 Language English Legal Formats Commander, Legacy, Modern, Pauper, Pioneer, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Standard, Timeless Rulings (1/22/2016) For some cards, surge represents only an alternative cost, a discount that applies if you or a teammate has cast another spell this turn
Dual Wielding his Long Colts: it looks cool and if you have both in hand, you can play the other at the same time without paying the cost, but the benefits of doing so are limited, as Tony's guns are a pretty crappy weapon unless you waste all your bounties at once (which, as explained above, is not a good play) and you cannot even shoot them both at the same time either, negating the main advantage of wielding both together
Lastly, there's one honorable mention I wanted to highlight for its value, despite not fitting into one of my previous categories
In order to create this list, I looked at a list of all of the creature types in the game, and then selected any I thought would have a chance, even if I was skeptical
What I like about it is that it replaces itself as you get to draw a card from it