That way, you can activate the ninjutsu ability once blocks have been declared to bring in one or more ninjas depending on how many unblockable creatures you attack with
And fun cards like Academy Manufactor can turn every investigate into three different tokens one Clue, one Food, and one Treasure which token doublers can multiply even further
It's crucial to note this record-breaking sale was for a pristine, unsigned copy, deriving its value purely from its perfect condition and foundational rarity
In a format as slow as this, I still think Thoughtseize is the better card, but formats change
(See rule 614, "Replacement Effects," and rule 615, "Prevention Effects.") Abilities that trigger when damage is dealt trigger now and wait to be put on the stack
This is an ability most likely to see play in formats where you can make your creatures unblockable and protect them, which means its big for Commander, but probably wont see much use elsewhere