It is a limited format, with each booster pack containing a theme
That being said, some decks are cheaper, easier to play, or simply more effective than others so often, this advice is based on whats good for players making their start in Magic
There are a few restrictions on what you can do with a Hybrid Monster in the Field Spell Zone
The correct text must target one of your own creatures first, which then deals damage to another creature
Labrynth Barrage X TRAP When you activate a Set Normal Trap Card, except "Labrynth Barrage": This effect becomes that Normal Trap's effect when that card is activated, also until the end of your opponent's next turn after this card resolves, your opponent takes no effect damage from your card effects
Shadowmoores (2008) Card not found, on the other hand, seems quite strong