I use The Ultra pro standard matte eclipse sleeves, and there has been no problem at all
It can even occasionally be a planeswalker, but only very specific ones, so its usually best to just stick to creatures
BPhillipYork: Fairly flexible utility card, and okay costed if you're worried about bouncing creatures or blowing up artifacts and enchantments
4 Teferi, Who Slows The Sunset Teferi, Who Slows The Sunset is a four mana Azorius planeswalker, and one of the many strong Teferi ones
Olivia, Opulent Outlaw Olivia, Opulent Outlaw, from Outlaws of Thunder Junction , blends Treasure tokens with +1/+1 counters for a powerful brew and a strong Mardu commander
[15] Each planeswalker enters the battlefield with a certain number of loyalty counters on it, which represent the planeswalkers health