Describe the Bug:Toshiro Umezawa ability when triggered ask 2 times the cost of the instant spell in the gy and doesn't ask to choose target instant spell in gy if there is 2 or more instant spell in the gy.
If another
Toshiro Umezawa is in the gy but not the last card discarded in the gy stack while one in the bf, if
Toshiro Umezawa ability trigger it will cast the
Toshiro Umezawa in the gy instead of target instant spell in gy, resulting in both going into the gy due to legend rule.
If another
Toshiro Umezawa is in the gy and is the last card discarded in the gy stack while one in the bf, when
Toshiro Umezawa ability trigger game will crash
Which card did behave improperly ?Toshiro Umezawa Which update are you using?(date,name)Which type(Duel,Gauntlet,Sealed Deck)KamiV2
What exactly should be the correct behavior/interaction ?Toshiro Umezawa ability when triggered ask only once the cost of the instant spell in the gy and ask to choose target instant spell in gy if there is 2 or more instant spell in the gy.
If another
Toshiro Umezawa is in the gy but not the last card discarded in the gy stack while one in the bf, if
Toshiro Umezawa ability trigger it will not cast the
Toshiro Umezawa in the gy but target instant spell in gy.
If another
Toshiro Umezawa is in the gy and is the last card discarded in the gy stack while one in the bf, when
Toshiro Umezawa ability trigger game doesn't crash.
Are any other cards possibly affected by this bug ?-
Example :
Toshiro Umezawa ability when triggered ask only once the cost of the instant spell in the gy and ask to choose target instant spell in gy if there is 2 or more instant spell in the gy.

Player has
Ancestral Recall in gy,
Toshiro Umezawa and
Sakura-Tribe Elder in play
AI has
Sakura-Tribe Elder in play.

At player turn, player attack with
Sakura-Tribe Elder, AI block with
Sakura-Tribe Elder.
Both die,
Toshiro Umezawa ability trigger and ask for U

Player pay U, then a copy of
Ancestral Recall is added to player hand and the game ask again for U and the
Ancestral Recall trigger its effect.
If another
Toshiro Umezawa is in the gy but not the last card discarded in the gy stack while one in the bf, if
Toshiro Umezawa ability trigger it will cast the
Toshiro Umezawa in the gy instead of target instant spell in gy, resulting in both going into the gy due to legend rule.

Player has
Brainstorm,
Tropical Island,
Toshiro Umezawa x2 in gy,
Toshiro Umezawa and
Sakura-Tribe Elder in play
AI has
Sakura-Tribe Elder in play.

At player turn, player attack with
Sakura-Tribe Elder, AI block with
Sakura-Tribe Elder.
Both die,
Toshiro Umezawa ability trigger and ask for 1BB

Player pay 1BB, then a copy of
Toshiro Umezawa is added to player hand and the game ask again for 1BB, then
Toshiro Umezawa is cast on the bf and both are buried du to legend rule.
If another
Toshiro Umezawa is in the gy and is the last card discarded in the gy stack while one in the bf, when
Toshiro Umezawa ability trigger game will crash

Player has
Toshiro Umezawa,
Lightning Bolt,
Sakura-Tribe Elder,
Black Lotus,
Ancestral Recall in gy,
Toshiro Umezawa and
Sakura-Tribe Elder in play
AI has
Sakura-Tribe Elder in play.

Game crash at trigger