So, any instance of Tinybones sees these as viable cards
PerformEffect is where all the logic goes, and PerformEffect requires: Host Card: The card that this effect was on when the game told it to execute Grid Space: The full game grid, for searching If applicable based on execution type: Opposing Card: The card that Host Card is facing in battle
Competitively, Arven allows you to search your deck for an item card and a tool and place it in your hand
The price-to-quality ratio is often favorable, particularly for alternate full art versions that cost significantly more in the English-language market
What's important is that the card is still legal for tournament play because it cannot be distinguished from other cards in the deck when sleeved
However, it qualifies as a good Blue-Eyes support since it can get you three negates on the board for a single Fusion Summon