They follow the basic pattern of sacrificing for one of three different basic lands while also gaining a point of life
If you want to live a real pipe dream, pair it with Obeka, Splitter of Seconds
Normally, cards are cut to have rounded corners, in such a way that suggests what is known as an "R4 cut." However, these cards appear to have non-rounded corners overall
The benefits of shaving your opponents life down are twofold as this also triggers proliferation meaning you get to double any existing counters on your creatures
Being Mardu (Black/White/Red), you get access to quite a lot of mass land destruction alongside all the best tutors typically found in Black
Buying proxy cards is ideal if you are looking for high quality, realistic MTG cards