This game can be connected to Yu-Gi-Oh
Instead of winning the game with one single big creature, the Go Wide strategy wants to win with a huge army of creatures
If you've never seen Nadu in action, its ability (revealing the top card of your library whenever one of your creatures becomes a target of a spell or ability, then putting it into play untapped if it's a land or putting it into your hand if it's not, twice each turn for each creature) creates not infinite but sort of functionally infinite loops with an equipment that equips for free, like Skullclamp or Lightning Greaves
The ninja frame seems to play into the more modern, technological part of the sets lore, whereas the ropes on the samurai frame seem to hint towards the more traditional, spiritual parts of the plane
In the format, the cards that synergise well with Dialga are Trekking Shoes, Scoop Up Net and the like
Theres also options like Toluz, Clever Conductor, which returns the cards to your hand later on