Deadpool Katanas Fortnite need to be found to complete the fourth week of Deadpool's Challenge. The Katanas, like the other things you had to find for Deadpool, are hidden in plain site around the Battle Pass tab.
Deadpool Katanas Fortnite: Where to Find the Dual Katanas
One Katana is stabbed into the mirror in Deadpool's bathroom office. The second one is on the left by Maya's feet in the Upgrade Vault. This challenge is fairly tame compared to last week's toilet busting.
The other challenge for this week is to deal 10,000 damage to opponent's structures. That one is simple enough, just go bust down any structures you find in game. While you're questing, this week also has the second round of TNTina's Trial.
While Deadpool's skin isn't available yet, we can expect to see him as this Season's secret skin. Keep up with the challenges so you're ready for Deadpool when he goes live at some point.