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The card you drew is a red suit, right?
Literal
You [genitive-の] drew card [topic-は] red [genitive-の] suit is [confirmatory-ね].
A stage-magic or card-game observation. 引く ('to pull, draw') is used here in the card-game sense of drawing from a deck. The past form 引いた serves as a relative clause modifying カード: 引いたカード = 'the card that [you] drew.' マーク ('mark') is a loanword commonly used in Japanese for 'suit' in card games (the specific word for the decorative emblem on cards) — distinct from native 記号 ('sign'). The 赤のマーク ('red suit') refers to hearts or diamonds. The sentence-final ですね invites confirmation of an observation the speaker has just made.