all entry hazards deal 12%, no more no less, unless you have multiple layers of spikes up. like spikes+rocks=24%, 2 spikes=24%, etc.
that said, entry hazards aren't popular in 3v3 or doubles. really only in 6v6, and if you're in 6v6, you should have a defog or spinner, because you should be expecting hazards. Why not use Tsareena, she's a very good spinner. She has the bulk, a slow uturn, recovery, rapid spin, a decent spam stab, or play rough.
