The best I can come up with is stealing permanents and perhaps changing their creature types or making them artifacts, which all sounds highly blue/black to me
However, Gotcha doesnt seem to be at all opposed to the speculative profiteering nature of collectible cards
The God-Eternals Although there are numerous, absolutely absurdly powerful cards contained within War of the Spark, four cards that immediately jump out and wave their arms in your face, shouting pick me, pick me are the God-Eternals: God-Eternal Kefnet God-Eternal Rhonas God-Eternal Oketra God-Eternal Bontu Each and every single one of these cards should be at the very top of your pick list and you should be jumping with joy if you manage to pull one of these in your limited event
Lots of synergy to be found with enchantment creatures
Along those same lines, well add Command BeaconCommand Beacon
Notable cards in this deck include: Ulalek, Fused Atrocity The decks face Commander , enabling Eldrazi ramp strategies and token generation