What is ETH3L? How can we use this safely?

Answer

Triple leverged tokens

if ETH price goes up 1 %, ETH3L goes up 3%
if ETH goes down 1%, ETH3L goes down 3%

You gotta manage your risk

For instance, 19 May crash, if you had held on to ETH3L, you would have lost drastically

so it depends

if you use Eth3L, must have stop loss