There are many scenarios where a creature enchanted by Pretenders Claim will either A) be blocked and have the tapping lands ability not matter, B) just be outright killed, or C) connect because the opponent wasnt going to block anyhow
Like Basilisk Gate, this second ability wont come up too much unless you are heavy on the beatdown plan
Whenever a Warrior attacks, you may have its controller create a 1/1 white Warrior creature token thats tapped and attacking. Thats good as it is, but it gets better
The Pokemon Communication, Poke Ball and Professor's Research support cards can help you draw and find key pieces of your deck quickly, improving your consistency
The odds of pulling one of them is one out of 96 packs
Only by looking at the decklist and seeing things like Arcane Melee might you realize that this was intended to be a politically minded control deck, aka Group Slug