Dragon Scale Armor

Equipped creature has +3/+3 Viglance, and shroud.
Whenever Equipped Creature Blocks, put a Guardian counter on this card.
Whenever Equipped Creature Attacks, put a Seige counter on this card.
At the beginning of your upkeep, if this card has 3 or more Seige or Guardian counters, Transform it. If it is guardian, transform into Garthi, if seige, Transform into Segys.