1 Foil-etched reprint legendary creature
Slinza, the Spiked Stampede AND Woodland Liege Hello happy Beast Buddies
13 Pete, Bad Guy (Enchanted) Mickey's Original Villain Makes His Debut Market Price: $43.84 Pete, Bad Guy is the first enchanted we see on this list, which accounts for the price hike
My second turn is likely Opt, use Scalding Tarn, Serum Visions. Opt first, use that info to figure out what land I want on my fetch as the cost of reshuffling a bottomed scry is low,and then Serum Visions and get the maximum out of that scry
Emberheart Challenger also has the Valiant ability, which states that whenever it's targeted by a spell or ability you control for the first time in a turn, you exile the top card of your library and can cast it until the end of that turn