dns4.mtgsy.com has no NS records.
NS records for this zone are defined at mtgsy.com.
NS records for this zone are defined at mtgsy.com.
Question and response
Question
dig dns4.mtgsy.com. NS
Answer
The response has no answer records.
Authority
mtgsy.com. 172800 SOA dns0.mtgsy.com. hostmaster.mtgsy.net. 2009111969 3600 300 1209720 18000
Additional
. 0 OPT ; payload 1280, xrcode 0, version 0, flags 0