Kinji Hakari-Restless Gambler

Flash,first strike
Whenever Kinji Hakari attempts to spawn, (1 per turn) roll a D-20, where X is the number rolled divided by 2, rounded down.
At the beginning of player upkeep roll a D-20,
1-6: Kinji Hakari gains +5/+5
7-11:Kinji Hakari gains +7/+7 with double strike
12-15:Kinji Hakari gains +9/+9 with trample
17-20: Jack Pot! gains +11/+11 with all previous effects with hexproof.
At the beginning next turn reroll a D-20.