But on MTG Arena, theres an internal upper limit of 250 cards for a single players deck
In no way am I claiming my speculative arguments are definitely correct
This can be made easier by cheating the cards out somehow, but the way the card was intended to be used when the cards were made was that you would Normal Summon Aitsu, a Level 5 Normal Monster with 100 ATK and DEF, protect it enough until you could tribute 2 more Monsters to summon Koitsu and then attach Koitsu to Aitsu
It has a size of 7 mana or more, and since its toughness is exactly 7, it's great that it just barely dodges the 'removal for toughness 6' found in Red and Black
As characters receive damage counters, healing them is the best way to ensure they stick around for the long haul
reality is what the audience perceives it to be