Sigh... ok I'll try to teach you combinatorics.
In these formulas, ncr[N,n] means N!/(n!(N-n)!)
Hyreon formula- odds of drawing at least 2 pends and 1 wings in 8 cards
Sum[Sum[ncr[9,p]*ncr[6,w]*ncr[17,8-p-w]/ncr[32,8],{w,1,8-p}],{p,1,8}]~44%
For 9 cards:
Sum[Sum[ncr[9,p]*ncr[6,w]*ncr[17,9-p-w]/ncr[32,9],{w,1,9-p}],{p,1,9}]~53%
Note that the mulligan is ignored as it adds well under a percent to the value.
For Zeru
In 7 cards:
Sum[Sum[ncr[10,p]*ncr[3,d]*ncr[17,7-p-d]/ncr[30,7],{d,1,7-p}],{p,1,7}]~12%
Sum[Sum[ncr[10,p]*ncr[3,d]*ncr[17,8-p-d]/ncr[30,8],{d,1,8-p}],{p,1,8}]~15%
There I gave you the formula. Hyreon's chance of getting his out first is significantly higher.