Hardened Carapace

When this spell enters the battlefield,
put an Evolution counter on it.
At the beginning of your upkeep, put an Evolution counter on Hardened Carapace.
1 or more counters -
Creatures you control gain +0/+1
3 or more counters -
Creatures you control gain +1/+2
5 or more counters -
Creatures you control gain ward {1}