Interestingly, his standard, Rare version is very cheap, selling for way under $1 , so if you want to get multiple Scar cards on your side, and really stack those card draws, its most certainly affordable to do so
Are the card creators even trying anymore
The rules for layers are notoriously tricky, but in almost all cases you apply the copy effect BEFORE other stat changes, meaning lingering buffs from triggers will boost its new power too
This means that while it can efficiently copy a creature for a low mana investment, its controller must have access to sufficient creatures to crew the Imposter Mech if they want to utilize its creature functionality such as its ability to attack
After that, Black Market, Vein Ripper, and Vicious Shadows are a few of the best ways to pour it on with your kill spells
Pretty much any green deck is going to want to find room for it and Questing Beast is no exception