Simple Problem/Angry Rabbit

Hey There,

i have a little problem creating a simple "Killer-Bunny". I want to let a Rabbit spawn with killer-rabbit skin and with an overwritten AI to meleeattack players (like the minecraft killer-bunnys you can create via command).
but everything i try, none of this works, so here is my actual code:
Killerbunny:
Type: RABBIT
Display: '&dKiller-Kaninchen'
Health: 20
Damage: 8
Options:
-RabbitType: THE_KILLER_BUNNY
-AlwaysShowName: true
-MaxCombatDistance: 5...

Simple Problem/Angry Rabbit