The two concerns that players communicated to me the most were Llanowar Elves and Omniscience
Creature - Human Rogue Color tag templates(None) Tribute Mage When this creature enters, you may search your library for an artifact card with mana value 2, reveal that card, put it into your hand, then shuffle
My main quarrel with this card is that it seems too difficult to actually play the cards you steal
Sure, Wizards has moved away from ritual spells that can generate a lot of mana recently, but weve still seen Culling the Weak and Sacrifice reprints
Creature - Human Druid Color tag templates(None) Kinjalli's Sunwing Flying Creatures your opponents control enter tapped
No immediate combos, let alone good ones, jump to mind for this yet