If you really wanted to reinforce Unions as a whole to compete with the current meta: I would say something like "Target 1 Union monster from your hand, Deck, or Graveyard: Special Summon 1 monster whose name is included in the card text of that card from your Deck or Graveyard
That's a very powerful base of creatures from which to draw some serious power
Gideon, Ally of Zendikar is a Legendary planeswalker gideon card in Magic: the Gathering MTG
1 Dragon Master Magia Three Omni Negates In One Omni negates are highly coveted due to how they can be used in any situation to stop your opponent from playing
Metaphorically True: Though he claims to always speak the truth, his guilt trips are at best half truths, such as preying on a childhood accident of Axel's and implanting False Memories to make him believe his parents died from it, when they are alive and well
In fact, several have just arrived in Japan, as part of the Shiny Treasure ex set