Not Blink, but something related... I was thinking of Blazing Speed:
3 mana secret. When your hero next takes damage from a spell, your enemy's turn ends immediately.
As for portals...
Portal: Gadgetzan (4 mana). Change the map to a Gadgetzan themed map. Summon a random goblin minion with battle cry.
(Mad Bomber, Booty Bay Bodyguard, Gadgetzan Auctioneer, Captain Greenskin, Venture Co. Mercenary, Reckless Rocketeer for now. Did I miss any?)
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