That said, considering it has to be against a creature and not simply target, means you wont be getting the benefit from hitting players themselves, or opponents can simply choose not to block with one of their creatures and that means no counters, but with spells like Duel for Dominance or Ents Fury that forces Wolverine to attack an opponents creature or enchantments like Fire Whip can mitigate this restriction pretty easily
Assigning no combat damage isn't the same as preventing that damage
Each card clearly shows its type symbol in the top corner, so organizing them this way is pretty easy
Now we just use a more fancy cardboard that isn't from a shoe box
This should be based entirely on what the opponent is doing, but more than likely Id probably cast the Sylvan, knowing that if its dealt with I have a backup copy, and if its not, will lead to finding more mana and gas
The good news about Channel Fireball sleeves is that they are fairly inexpensive, at $2.99 per pack of 50