Though only looking out for himself, Toshiro ended up saving all of Kamigawa.

Secret Lair Drop

Toshiro Umezawa

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
Whenever a creature an opponent controls dies, you may cast target instant card from your graveyard. If that spell would be put into a graveyard, exile it instead.

Betrayers of Kamigawa

Bushido 1 (When this blocks or becomes blocked, it gets +1/+1 until end of turn.)
Whenever a creature an opponent controls is put into a graveyard from play, you may play target instant card in your graveyard. If that card would be put into a graveyard this turn, remove it from the game instead.