Adding/ Changing a Tier (Patreon)

So, I've been brainstorming new things i could try and provide for ya'll for following me(Bless You!) and to also entice folks to join.

I'm thinking of adding a $20-25 tier for those members to be entered in a monthly raffle for a colored sketch pin up of a character of their choice.

Only thing is, from what I hear, Patreon doesn't like Raffle systems?SO, I'm debating if I should make a Discord just for those members OR find a website that all those members can show up and watch the raffle spin.

Opinions and ideas are welcomed.