Ziatora's Proving Ground (Showcase Skyscraper) [Streets of New Capenna] SM103a Bloodthirster can't attack a player

Bloodthirster can't attack a player it has already attacked this turn

{T}: Search your library for a land card

Set: Unlimited Edition Type: Artifact Rarity: Uncommon Cost: {1} {T}: Look at target player's hand

but the dimensions make no sense

Set: Unknown Event Type: Creature — Phyrexian Beast Rarity: Common Cost: {6}{U}{U} Affinity for Phyrexians (This spell costs 1 less to cast for each Phyrexian you control

Ziatora's Proving Ground (Showcase Skyscraper) [Streets of New Capenna] SM103a Bloodthirster can't attack a playerSet: Streets of New Capenna Type: Land Swamp Mountain Forest Rarity: Rare ({T}: Add {B}, {R}, or {G}.) Ziatora's Proving Ground enters the battlefield tapped. Cycling {3} ({3}, Discard this card: Draw a card.)