Stats                : Ojama Trio is a Normal Trap card.  It might be a hair more useful as a Quick-Play Spell, as you could use it the turn you drew it… then again, it also would be much easier to negate.  Outside of Jinzo and Royal Decree, Trap negation tends to be rather pricey, and those two affect all players.  Compare this is things like Magic Jammer and Magic Drain.

Effect(s)            : Ojama Trio creates three Level 2 Light/Beast Tokens in Defense mode with rather puny stats (0/ATK and 1000/DEF).  They can’t be used for Tribute Summons, and what’s more, they inflict 300 points of damage (per token) to their controller when destroyed?  Why would you want such things on your side of the field?  You don’t: good thing Ojama Trio creates the tokens on your opponent’s side of the field.  On its own, this is a solid effect, as it can score a little burn damage or let you drop your opponent down to two Monsters zones.  Combos and some rulings make it even more useful, and note that as long as your opponent has at least three open Monster Zones (fairly likely unless they are good at swarming) then this card is as “chainable” as anything else.

Rulings: Here are the rulings straight from the official UDE Yu-Gi-Oh FAQ:

OJAMA TRIO 

You cannot activate "Ojama Trio" if there are not 3 vacant Monster Zones on your opponent's side of the field.

You cannot activate "Ojama Trio" if "Scapegoat" or "The Last Warrior from Another Planet" is preventing you from Summoning.

If there are Ojama Tokens on your opponent's side of the field, and "Remove Brainwashing" is activated, the Ojama Tokens are switched to your side of the field. If you don't have enough Monster Zones for them, some of the Ojama Tokens are destroyed and the damage is inflicted to the opponent.

When you chain Ojama Trio to your opponent's "Call of the Mummy" effect, the effect of "Call of the Mummy" is negated.

When your opponent activates "Snatch Steal", and you chain "Ojama Trio" to fill up his/her remaining Monster Zones, then there is no room for the stolen monster, and it is destroyed. 

Uses and Combinations  : As you can see, the Ojama Trio can mess up a lot of your opponent’s plans.  This isn’t bad, but it’s not really good.  Fortunately, there are several tiny but useful combos.  Running a lot of “trample” Monsters like Enraged Battle Ox?  You’ll do 700 points of trample damage and 300 points burn damage.  It also gives you some safe targets for Berserk Gorilla if you need it.  It would be nice if these guys got summoned into ATK mode instead of DEF mode… so why not use either a Windstorm of Etaqua, a strategic Trap good for both offense and defense in its own right, to spin them all into ATK mode?  Is that too short term?  Try Final Attack Orders instead.  Running a Stall/Burner?  Keep them from summoning any possible TecH monsters (like Sonic Duck), provide yourself with extra burn (every little bit helps), and combo with an underused Trap for stall burn: Just Deserts.  Guarantee a minimum 1500 damage from an unrestricted Trap.  One almost universal combo is to combine it with Torrential Tribute.  You’ll have to either tack it onto a normal Torrential activation or make certain you have time for Ojama Trio to resolve their summoning, but those two cards would let you clear the field of Monsters and inflict 900 LP damage.  It also means you can safely activate Torrential on your turn without having to use your own Summon to trigger it.  Finally, if you wanted to make an “Ojama” deck using this and the other Ojama cards, it’d be rather useful.

Ratings

Traditional       : 2/5-This may seem high, but no open Monster Zones means your opponent can’t summon Chaos Monsters.  It also gives your own Chaos Monsters more time to materialize.

Advanced        : 3.5/5-If that seems high (especially compared to last weeks), remember those were mostly specific deck cards and side deck cards: this card actually isn’t too bad for general use.  I’d still stick to decks that can utilize two or three of the combos I listed in the Uses and Combinations section.

Limited            : 4/5-Beauty here it is.  Your opponent will have a hard time getting rid of the tokens.  This means your opponent will essentially have just two Monster slots until you decide you want 300 points of burn damage.

Summary

A good card that is both fun to play and reasonably effective.  It’s not for every deck, but it rarely will be totally useless… as long as you can activate it.