As for card draw, the low number is misleading since Wyleth is such an absurdly strong source of draw, and since the entire deck revolves around him the deck draws a lot more cards than the numbers would suggest
Remove expired sleeves: Replace every 612 months under heavy use, or as soon as seams loosen
Until end of turn, Ursine Monstrosity gains indestructible and gets +1/+1 for each card type among cards in your graveyard
But even an even exchange with the discard coming first can have a card quality discard effect (that is it forces players to exchange cards they've been saving for random cards making the player lose overall card quality)
If the battle is destroyed, sacrifice, exiled, or removed from play in any other way, that counter was not removed and it will not be able to be cast from exile
"Hearthstone: how a game developer turned 30m people into card geeks"