You choose which set of characteristics the card has when you cast it
If you're playing in blue, you have both Proliferate (choose any number of permanents with counters on and give them another of that kind of counter) and Amass available to you, which can be a gnarly synergy that speeds up your Dreadhorde considerably
Contents: 36Duskmourn: House of HorrorPlay Boosters
The joke is that the Mercenaries can adjust each others powers to get you the mana you need, which seems more meme than dream
Like most Magic: The Gathering cards, the value of Shorikai, Genesis Engine depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Neon Dynasty Commander)
Stubborn Burrowfiend is another powerful and aggressive 2-drop