Tazech, Everlasting

If Tazech, Everlasting has 0 toughness, it instead
has 1 toughness.
If Tazech, Everlasting would die, instead remove
all damage from it.
If you are required to sacrifice a permanent,
Tazech can't be the target of it. If you control no
other permanents to sacrifice, counter the spell
or ability instead.