Regrade on Diss Shield ejected shield to hand. no thank you.

[Septima Rhay]

Spoiler for replay:

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[Turlututu]

Are you sure what happened here isn't:
1) Your diss shield becomes unupped
2) You have exactly enough  to block the opponent's damage (3x8) with your unupped diss shield
3) Your  reaches zero, causing the unupped diss shield to disappear
4) You happen to draw an unrelated upped diss shield on your turn
?

[Septima Rhay]

I think you're right.  I was too lazy to understand what actually happened.