Original Post — Direct link

https://www.reddit.com/r/hearthstone/comments/hr5abf/new_card_transfer_student/?sort=new

Board Effect
Horde Battlecry: Deal 2 damage.
Stranglethorn Stealth, Poisonous.
Stormwind Divine Shield.
Pandaria Battlecry: Give a friendly minion +1/+2.
Naxxramas Deathrattle: Add a random Deathrattle minion to your hand.
GvG Battlecry and Deathrattle: Add a Spare Part to your hand.
Blackrock At the end of your turn, reduce the cost of a random card in your hand by (2).
Grand Tournament Inspire: Draw a card.
LoE (Excavation) Battlecry: Add a random weapon to your hand.
LoE (Museum) Battlecry: Discover a new Basic Hero Power.
Old Gods Battlecry: Spend all your Mana. Summon a random minion of that cost.
Karazhan Battlecry: Add a Karazhan Portal spell to your hand.
Mean Streets Battlecry: Give a random minion in your hand +2/+2.
Un'Goro Battlecry: Adapt.
Frozen Throne Deathrattle: Add a random Death Knight card to your hand.
Kobolds Battlecry: Recruit a minion that costs (2) or less.
Witchwood Echo, Rush.
Boomsday Taunt, Battlecry: If you have 10 Mana Crystals, gain +5/+5.
Rastakhan Rush, Overkill: draw a card.
Rise of Shadows Battlecry: Add a Lackey to your hand.
Uldum (Feet) Reborn.
Uldum (Windmill) Battlecry: Add a random Uldum Plague to your hand.
Dragons Battlecry: Discover a Dragon.
Outland Dormant for 2 turns. When this awakens, deal 3 damage to two random enemy minions.
Scholomance ???
External link →
almost 4 years ago - /u/HS_Celestalon - Direct link

Originally posted by [deleted]

I wouldn't be surprised if they keep it updated with the next 4-5 boards before just putting one final effect on it for any boards it doesn't recognise.

This is basically correct. We plan to update Transfer Student with custom effects for new boards, while he is in Standard. After he rotates to Wild, new boards will get a consistent "Battlecry: Discover a card." for each board.

Plans may change in the future, but that's what we're thinking right now, at least.