Thats why Id definitely address this issue by installing the Hand Is Not Full Mod by DIASILEDU, which increases the amount of packs you can hold up to 512
This is true for both the creature line-up and the reanimation spell count, but if you do this, you have a solid Commander deck to play with
Once per turn: You can banish 1 LIGHT Fairy monster from your GY, then target 1 card on the field
The most common way this is achieved is by inserting a piece of paper over a reversed Magic card, with basic and often crudely rendered information indicating what the card is
being able to copy the most powerful permanent on the board can be a potent ability, especially when you have four boards to choose from
The deck may be a bit of a glass cannon, even if it aims to play for the long game, but I think its fair to say that Gavi can be built in any number of ways, including dedicating an even higher ratio of the deck to cycling