No. This is unmaintainable code, laziness, greed and lack of QA combined. Since I work in development area, I know it does not have to be this way necessarily.
If you look away during your opponent Warrior's turn for a moment and then see a full board of minions and wondering where they came from, this is why.
As good Defile was, this is much more limited: first and obvious, it's a minion, not a spell, so no boosting it with spell damage. The second is the mana cost, which could limit any combined damage/minions being played to get the chain clear.
The days of Ragnaros the Firelord or The Lich King being played in every deck are long past. You're playing this in Arena because it's a 8/8 for (8) Rusher, not the Honorable Kill.
You are going to ruin somebody's day with this card. Unlike Cult Neophyte, the Mana tax persists until a spell gets played, so outside of Libram Paladin or a deck that runs 0 spells, you are ruining your one of opponent's turns.
Single/Random target handbuffing seems bad to me, but at the same time I can also see some video with Epic Sax music somehow making a 30/30 Boar otk deck.
Maybe see Rush/Conditioning (Rank 1) Warrior make a return with this, spend a turn buffing the hand, and then punish the opposing aggro with oversized taunts. But everywhere else? Not really.
(Updated) Hearthstone Patch 127581 Brings in Bug Fixes for Zephrys, The "Temp" Alterac Valley Pack Art Issue, and Arena & Duels Wins UI
No. This is unmaintainable code, laziness, greed and lack of QA combined. Since I work in development area, I know it does not have to be this way necessarily.
New Warrior Spell - To the Front!
If you look away during your opponent Warrior's turn for a moment and then see a full board of minions and wondering where they came from, this is why.
New Warrior Spell - Iceblood Garrison
Way too slow for control purposes.
New Warlock Spell - Tamsin's Phylactery
HOOT. HOOT.
For a more serious review, simply good with Eggs, Korrak is going to be annoyingly powerful, and THE OWLS WILL KILL US ALL OH GOD!!!
New Neutral Minion - Spammy Arcanist
As good Defile was, this is much more limited: first and obvious, it's a minion, not a spell, so no boosting it with spell damage. The second is the mana cost, which could limit any combined damage/minions being played to get the chain clear.
New Neutral Minion - Bunker Sergeant
Control deck that plays this seems pretty desperate to me.
New Neutral Minion - Troll Centurion
The days of Ragnaros the Firelord or The Lich King being played in every deck are long past. You're playing this in Arena because it's a 8/8 for (8) Rusher, not the Honorable Kill.
New Shaman Spell - Frostbite
You are going to ruin somebody's day with this card. Unlike Cult Neophyte, the Mana tax persists until a spell gets played, so outside of Libram Paladin or a deck that runs 0 spells, you are ruining your one of opponent's turns.
New Warlock Spell - Seeds of Destruction
Maybe gets played in a Non-Demon Seed Handlock deck, just play it on an otherwise dead turn and get a return sometime later in the game.
New Warrior Minion - Scrapsmith
Looks like Rush Warrior is going to be called Taunt Warrior this expansion.
New Neutral Minion - Corporal
Gonna blindside somebody in arena (read: me) and they're going to be mad about it.
New Neutral Minion - Kobold Taskmaster
Only just playable in niche Miracle decks.
New Neutral Minion - Tower Sergeant
I much rather play Traveling Merchant, even if that doesn't become as big.
New Neutral Minion - Ice Revenant
Class card in disguise! Specifically Shaman/Mage dual class card with how both classes have plenty of Frost spells.
New Neutral Minion - Herald of Lokholar
Seems alright, but I'm thinking most decks that would run this are running their own draw engines and/or Multicaster.
New Warrior Spell - Shield Shatter
Makes Frozen Buckler worth playing, but also pretty good with Heavy Plate.
New Warrior Minion - Glory Chaser
Not too many 1 mana Taunts for Warrior, but that's what To the Front! is for!
New Hunter Minion - Stormpike Battle Ram
If Midrange Hunter makes a comeback, expect this to be everywhere.
New Neutral Minion - Ram Commander
Everyone gets Bumper Car! This one just bumps with their horns! :D
New Neutral Minion - Stormpike Quartermaster
Single/Random target handbuffing seems bad to me, but at the same time I can also see some video with Epic Sax music somehow making a 30/30 Boar otk deck.
New Neutral Minion - Direwolf Commander
Forgettable Pack Filler, at least forgotten until you browse over your collection and notice you've somehow gotten 9+x copies.
New Neutral Minion - Frantic Hippogryph
Might be good, but at the same time seems too vanilla that it falls by the wayside.
New Neutral Minion - Blood Guard
Feels like the kind of card that only gets to snowball in Arena and nowhere else.
New Neutral Minion - Snowblind Harpy
Pretty good for control Shaman, Mage, and maaaybe Warrior.
New Neutral Minion - Stormpike Marshal
Maybe see Rush/Conditioning (Rank 1) Warrior make a return with this, spend a turn buffing the hand, and then punish the opposing aggro with oversized taunts. But everywhere else? Not really.