The Commander Rules Committee decided to leave sticker cards legal in Commander, though they were banned in Oathbreaker
There are other special events such as Jump In, which stay for longer than a week at a time and are great for beginners who are trying to find their play style
This lovely card features the bestest furry cats and dogs lounging and playing in a pristine field of green grass and flowers
The Red-Eyes deck is pretty strong and should be beginner-friendly, and will help you get through the story duels quicker
Gogo, Master of Mimicry Rarity: Mythic Rare TYPE: Legendary Creature SUBTYPE: Wizard CMC: 3 Mana cost: USD: $7.93 EUR: 8.39 TIX: 0.02 EDHREC RANK: 3771 (2/4) , : Copy target activated or triggered ability you control X times
For example, you can check out their entire selection of reverse holo Pokmon cards at this link, or holo Pokmon cards here