So far, most Summons have been massively high-powered, splashy, and downright fun cards that make a huge impact on the game both as soon as theyre cast as well as during each of their powerhouse chapters
In Zendikar Rising they were all lands on at least one side, while in Kaldheim they were used for the legendary creature Gods on one side and a different kind of permanent related to them on the other
Oathsworn Vampire and Feast of the Fallen are probably the two best examples of this, and they both rely on Innistrads worldbuilding to be successful
Each "Destiny HERO - Plasma" you control gains 100 ATK for each monster in the GYs, it cannot be destroyed by your opponent's card effects, also it can make a second attack during each Battle Phase
Lisia is a Dragon-type Pokmon trainer, but her inclusion may have more to do with her general appeal than her trainer prowess
Modern side-loading pages reduce the risk of cards sliding out