Let me search for both cards and check their presence in UW Control simultaneously!
Let me also check if Pinnacle Starcage appears in the sideboard, and broaden the search a bit:
Here's the breakdown for Azorius Control over the last 6 months:
Temporary Lockdown is clearly the winner, and by a significant margin. It's also the far more established choice, appearing in mainboards while Pinnacle Starcage has only shown up as a fringe sideboard option with minimal adoption.
ā ļø Caveat: Sample sizes here are small (4 entries for Lockdown, 2 for Starcage), so treat these numbers as directional rather than conclusive. Neither card is a heavy staple in the current UW lists based on recent data.
š Sources: Data from 256 tournaments (59% MTGO, 41% Melee) over the past 6 months.