Sasq’ets, the Elusive

Haste, hexproof, trample, vigilance
{5}{r/g}{w/u}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it
becomes monstrous.)
When Sasq'ets, the Elusive becomes monstrous,
until your next turn, your life total can't change
and you have protection from everything. All
nonland permanents phase out.
When Sasq'ets, the Elusive dies, you may put it
on top of its owner's library.