Green Knight

Level up ({1})
Whenever this creature levels up put a +1/+1 counter on it
1-2 This creature gains toxic 1
3-4 This creature gains toxic 1
5 This creature's level up becomes {g} this creature loses toxic and gains infect
6-7When this creature deals combat damage to an opponent, put a card of their choice into your hand
8-9 When this creature reaches level 8 destroy target permanent
10 When this creature attacks put a -1/-1 counter on each creature you don't control