ST24 Green Jewelry Bonney ST19 Smoker I usually rank Black Smoker higher since the Leader has an effect that synergizes with your removal cards, reducing the cost of an opponents Character to help put it in range for your KO effect
The cards that are good now will continue to be good, and the cards that are bad will continue to be bad, which means that short-term speculation opportunities are going to be hard to come by
However, the real-life scene mostly plays a MTG format called Commander, whereas on Arena the main way to play is called Standard
Another option from Duskmourn could be Turn Inside Out, either instead of Titan's Strength or in addition to it
Suit up your strongest creatures like Zidane, Tantalus Thief, then outvalue your opponents with Giott, King of the Dwarves
(Discard it anyway.) At any time during your turn before you attack, you may discard Mysterious Fossil from play