In the case of Sazh's Chocobo, when a land hits the battlefield, it gets a +1/+1 counter , meaning that the more lands you can play each turn, the more counters it gets, and despite starting as a 0/1 creature, it can become quite the hulking beast very quickly
Instead, the flesh of its dead gives rise to alga
It has no mana cost, and thus its mana value is 0
Armor pieces and Shardblades allow your allies utility to equip in the heat of battle and give them edge, using notable and powerful artifacts such as Blackblade Reforged (Nightblood), Sword of the Animist (Mayalaran, Deadeye Shardblade) or Shadowspear (Oathbringer)
In accepting that mana advantageand by extension, time advantage (or vice-versa)is real and matters, you can clearly see how devastating these exchanges can be
Even just some minor Ward would make this an absolutely busted Marvels Spider-Man card