egg

at the beginning of your upkeep, add an evolution counter to egg
———{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
0-3 evo counters | 0/2 defender
{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
4-7 evo counters | 1/5 defender
{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}{line}
8+ evo counters | 12/12 with hexproof, indestructible, flying, vi