mtg cards like isochron scepter Cube: The Top 12 Things to put on an You may copy the exiled card Isochron Scepter (JA)

The Circle of Loyalty The Circle of Loyalty squeezes in some legendary text on what would otherwise be a strict knight payoff

Its still an efficient threat and blocker and could be a stellar common

But if I had to choose just one, Id go with Otrimis Enhanced Evolution

This is a deep well of design space, take for example, Summon: Shiva which slots into tapper and stun counter decks as well as those looking for a burst of card draw

Outland Boar : Creature (Boar), casting cost of two generic, one red and one green mana, 4/4

Whats cool about this, other than that, is that everyone other player can do the same, and for every other player that does it, you get to do it again