How have they changed since they first appeared, and where are they going
As opposed to versions of this mechanic that might care about mana value, this specifically cares about the mana spent, which incentivizes you to play the improved modes of tiered spells
These each have their own effects on them, like Towashis card giving modified creatures you control trample and the ability to draw you cards
Im excited to test it out
(If a card has multiple permanent types, choose one as you play it.) Myojin of Night's Reach Rarity: Rare TYPE: Legendary Creature SUBTYPE: Spirit CMC: 8 Mana cost: USD: $0.16 EUR: 0.30 TIX: 0.02 EDHREC RANK: 11714 (5/2) Myojin of Night's Reach enters with a divinity counter on it if you cast it from your hand
Most Alpha copies saw extensive play before protective sleeves were widely used, making pristine examples exceptionally difficult to obtain