Tetsuko Umezawa, Fugitive
Legendary Creature — Human Rogue
Creatures you control with power or toughness 1 or less can't be blocked.
"Her talent for slipping unseen behind enemy lines provided information that would prove crucial to Dominaria's defense." —*Heroes of the Second Invasion*
Serena Malyon
Multiverse Legends (MUL)
• #142zRulings
Once a creature you control has been blocked, changing its power to 1 or less won't cause it to become unblocked. Changing its toughness to 1 won't cause it to become unblocked, and changing its toughness to less than 1 will cause it to die.
(wotc • 2018-04-27)
Rulings
Once a creature you control has been blocked, changing its power to 1 or less won't cause it to become unblocked. Changing its toughness to 1 won't cause it to become unblocked, and changing its toughness to less than 1 will cause it to die.
(wotc • 2018-04-27)