draft or construct your deck with an appropriate number of 2-drops? you should be able to get a 2 in your hand most of the time, in either drafted or constructed, if you can't (and you're having difficulty) then you should consider using more 2-drops
sure, maybe you got river crocolisk or amani berserker and you're in a tight spot, its still nto as bad as you're making it out to be. he's not going to be killing your 2drop in that scenario, he'll spend his turn 2 mana on the heal to gen the card, if you're a druid, rogue, or mage, you've got the cleric already.
I draft 2 and 3 drops as aggressively as I possibly can; my decks are packed with them. That does not guarantee you get one in your opening hand, no matter how aggressively you mulligan. I'm not a TCG noob; my win rate in arena is ~70%. I can and do win against turn 1 Northshire Cleric, as long as I get an appropriate answer. (Or enough appropriate answers to survive Holy Smites and Shadow Word: Pains.) A hand without an answer is almost guaranteed to be a loss. That's just not true of any other 1-drop, particularly ones with three health.
Yay my first 9-1 arena![]()
Nice bow, grats!