I had a friend tell me that arena gives you the option of the most resources out of a pick of two hands when giving you your first seven.

29 lands in deck - 2 land hand
30 lands in deck - 2 land hand
31 lands in deck - 2 land hand
32 lands in deck - 2 land hand
33 lands in deck - 2 land hand
34 lands in deck - 2 land hand
35 lands in deck - 2 land hand
36 lands in deck - 2 land hand
37 lands in deck - 2 land hand
38 lands in deck - 2 land hand
39 lands in deck - 2 land hand
40 lands in deck - 2 land hand

Lands, amirite?

The shuffler is cracked.