format_list_numbered #14 blue ramp card
Crystal Skull, Isu Spyglass card art
Live Play Data

Crystal Skull, Isu Spyglass

{2} {U} {U} · Legendary Artifact · Assassin's Creed (ACR)
1%
Live Inclusion
Times Brought
763
Decks Running
366
Median Cast Turn
6.0
Drawn → Played
62%
Format

First-cast turn

n=114
0%
T1
0%
T2
4%
T3
18%
T4
19%
T5
46%
T6-9
13%
T10+
Median 6.0 P25 5 · P75 8 · max 16
On curve 22% (20 / 114 cast on T4) Cast same turn as drawn 32%

The "good card" funnel

763 brought · 326 players
Brought to game
763
Ever drawn
183
Reached battlefield
114
Still on board at game end
91

Once cast, 80% of this card is still on the battlefield at game end. This reflects how often it survives removal, not just whether it's a permanent.

≥ +7.7pp

Players who cast this card win 41% of the time (n=106) , vs 23% when it never left the library (n=483).

When players drew this card but left it in hand, they won 19% (n=62).

Read this as correlation, not as the card's contribution. Casting a card means you lived long enough to cast it, so this gap widens with mana value across every card we track.

Observed gap +17.2pp; 95% confidence interval +7.7pp to +26.7pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.

Final zone distribution

205 instances
3.4%
Library
44.4%
Battlefield
20.5%
Graveyard
4.4%
Exile

Commanders that played this card

in tracked games
Card text
Crystal Skull, Isu Spyglass card

Crystal Skull, Isu Spyglass

{2} {U} {U}
Legendary Artifact
You may look at the top card of your library any time. You may play historic lands and cast historic spells from the top of your library. (Artifacts, legendaries, and Sagas are historic.) {T}: Add {U}.
Assassin's Creed (ACR) · Rare · Illustrated by Thanh Tuấn

Frequently Asked

Why isn't there more data on this card?
Playgroup Live collects per-card gameplay data from real Commander games. Play counts appear once a card reaches 100 tracked games, and the full charts need a sample of at least 25 observed games that is not dominated by a single pilot. Until this card clears those bars you're seeing only the basic counts. Stats refresh nightly.
How is Playgroup Live card data collected?
Players using Playgroup Live import their decklists before a game and log card actions as they play. Each cast, zone change, and resolution is recorded as a real game event. Stats on this site are computed from those events, not from decklist scrapes or theorycrafting. Playgroup has recorded 760,000+ Commander games overall, and this card-level play data comes from the Playgroup Live seats playing virtual cards, a subset of that corpus.