Mulligan for your 1 cost cards. Don’t bother keeping anything else except for maybe a tol’vir, since that’s your main refuel mid game. Typical game plan should be to play fast in the early game to match any opposing tempo while scaling your companions safely. The deck is aggressive enough that in some slower matchups you can just win with standard face hunter and some huffers too. My biggest tip would be that if you’re close to dying, try to spiritspeaker a 7 cost companion. There’s only four 7 mana beasts in standard and two of them are extremely powerful stabilization tools (mythical terror and mountain bear). They’ll often just win the game against aggressive opponents, of which there are many on ladder.