Senku, Young Genius

Ten Billion Percent — If another creature you control would be destroyed or dealt lethal damage, instead remove all damage marked on it, put a stone counter on it, and it gains defender. Each creature with a stone counter is a wall in addition to its other types Revival Fluid — {x}: Remove a stone counter from a creature you control with mana value X. If you do, that creature loses defender. Activate only as a sorcery.{flavor}“I’m going to use the power of science to save every single person.” - Senku Ishigami