Ursaluna's Seasoned Skill ability knocks the cost of Bloodmoon down by one for each prize card your opponent has taken, so it's all about the comeback
Both have unique collector value, so the choice depends on whether you prefer rarity or set uniformity
Divided into rarity levels, this looks like this: 140 common, uncommon and rare (+140 reverse holo) 15 double rare 7 ace spec 18 ultra rare 22 illustration rare 10 special illustration rare 6 hyper rare If you want to complete a master set of Forces of Time, you only need a 9-pocket zipfolio (360 cards) to store all the cards in a binder
And you arent even playing Zendikar Rising
For every creature you gain, each creature gets a +1/+1 counter, thus offering an ever-increasing number of +1/+1 counters the more critters you cast
M Ampharos does not really have any high attack damage since it depends totally on the pre-evolutions attacks