Game 7 Buzzer Beater

Roll a D20. If it lands on 1-5 you you lose 15 life.
If it lands on 18 or 19 target opponent loses
10 life and no damage is dealt to the caster this
turn. If it lands on 20 you win the game.
If it lands on anything else, all nonland
permanents you control goes to your graveyard, discard your whole hand and lose 1 life.
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"This is it, the biggest stage. Make it, and
your praises will be sung for years to come.
Miss it and you've