(Equipment, Auras you control, and counters are modifications.) If the creature you control is an illegal target as Signature Slam tries to resolve but the creature you don't control is still a legal target, each modified creature you control (which may include the target creature you control if it's still on the battlefield) will still deal damage equal to its power to the creature you don't control
In the spirit of saving you some time, heres my very first article featuring a deck tech for Commanders Herald
Oathbreaker Call the Gatewatch | Illustration by Yefim Kligerman Oathbreaker is another Commander offshoot with its own unique twist
The first fake card I encountered was a beta Lotus back in 1998
At the end of the day, its not useful to draw 10 cards if nine of them are only lands
Given how troublesome scalpers can be, however, were not too optimistic about that