Nurgle lord of disease

The lord of disease : All creature and artifacts you opponents controls are affected by sickness Nurgle the lord of disease and eternal zombie cannot be dealt damage has indestructible shroud hexproof and 60 shield counters on it
The supreme eternal : whenever an opponents attacks all creature and artifacts the control dies create 2 15/15 eternal zombie tokens for each died and nurgle the lord of disease gets +x toughness where is is your starting life total and+x power where x is half of your starting l