The new LTM for the second day of the 14 Days of Summer Fortnite Event is the Use With Care mode.
New LTMs are being released every day in Fortnite for the 14 Days of Summer Event which started yesterday. The first two LTMs that were introduced to Fortnite Battle Royale for Day 1 were the Splashdown and Tag! LTMs.

The Splashdown LTM introduced a new item to Fortnite, the Water Balloon, which is only available in this mode. “Using only water balloons and their wits players will fight for the Victory Royale in an action-packed mode where the first team to get the target number of eliminations wins!”

The other mode to be introduced on the first day of the event was Tag! This mode has two teams, red and blue. The blue team need to stay away from the red team to avoid being pickaxed and joining their team. The mode was disabled earlier today due to players being able to use the pistol.
The new mode introduced for the second day of the 14 Days of Summer Fortnite Event is the Use With Care LTM.

The description for the mode is, “Players are granted building materials at the start of the match without the ability to gain more throughout the match. Make what you are given at the start last because that’s all you get!”
This mode is currently available to play in Duos. Here is the current modes playlist:
