RMS Titanic Ball Lightning effects are pretty iconic to a certain subset of players, and RMS Titanic is a cool one
Perhaps you flicker something like Quantum Riddler or Novice Inspector for value, or you kill an opposing token, or just remove a blocker so you can attack for lethal
Ishai becomes a dominant flying presence simply by staying in play, which frees resources for interaction and protection
Remember, these are extremely basic, non-competitive decks that are good for teaching people how to play or just playing kitchen table Magic with a friend, but they wont get you anywhere towards building a competitive Constructed deck or a viable Commander deck
Stay With Me as a title perfectly depicts Tidus' hope that they can defy the fate of summoners, and Yuna can remain with him after her mission is complete
Honorable Mentions As a turn 1 play going first, Mickey Mouse Food Fight Defender sets up nicely for a defensive way to get Lore early