It may be better than Secret Barrel or worse than Secret Barrel - I don't know - but it's bad.  Generic burn cards aren't good, and seeing as how a number of decks don't have much of a field presence, this isn't good.  If it happens to get popped by a S/T removal effect, yeah, it does 1000 damage but that does nothing to help your field presence, future plays or card advantage.
 
1/5

Secret Blast is our other card for today.  Another card with Goblin artwork, at least to a point, mining goblins it seems?  Simple enough burn card here, you inflict 300 Damage to your opponent per card they control.  1500 or more Damage probably isn't unreasonable if only through the laugh of averages.  Maybe more, but likely the more Damage it does, the closer you are to losing the Duel.  Secondly, if this card is destroyed by an opponent's card and sent to your Graveyard, you deal 1000 Damage to your opponent.  I mean there are better burn card out there most definitely, but there are far worse ones too.  This one is pretty average.
 
Rating:  2.5/5
Art:  4/5

Hello Pojo Fans,
 
Nothing really secret about Secret Blast. Stronger in LP damage by 100LP  than Secret Barrel, but not as good as it only counts the cards they control and not in their hand. Added benefit of inflicting 1000LP damage if destroyed, there isn't any downside to it being a bluff card or a card to draw out a lurking MST or destruction effect. You can also chain it to the destruction effect, gaining both effects and netting more damage to your opponent.
 
While it has that added benefit, there are better burn cards for Chain Burn to play.
 
Advanced-2/5
Art-2.5/5- Everyone there has time to run...but I'm doubting they will.
 
Until Next Time
KingofLullaby

Review for Secret Blast 9/8/2015

I am glad that trap cards are easy to review because this is 2 for Tuesday! Secret Blast is a regular Trap Card that has the potential to cause a lot of damage. If your opponent is swarming you, activate this and count the cards they have on the field. Deal Damage equal to that count times 300. You're probably going to get an easy 900-1500 Damage out of this card on most phases of the game.

The second effect is when it's destroyed and sent to the graveyard by your opponent. Inflict another 1000 damage. Now we're getting to the 1900-2500 range of Damage because once this is targeted by let's say Mystical Space Typhoon, you can activate this and inflict at least 300 damage for the MST on the field, then inflict the other 1000 for it being destroyed. I love that there is no restriction on how often this can be activated. It's almost never a dead draw because it's so chainable. (Is Chain burn still playable as a deck?)

Score: 4/5 Good source of a decent amount of effect damage.

Art: 3/5 Goblins are unintelligent. Why is it 2:13 left on the countdown?

-WarlockBlitz

It won't be secret for long; your opponent is gonna get burned one way or another with this Trap card. If you activate it, then you deal 300 LP damage for each card he/she controls, and yes that includes Spells/Traps/Pendulumns. However, he/she might be in for a bigger blast if the opponent tries to MST this Trap, dealing 1000 LP damage to him/her in this case.

A fun card, no doubt, but I think Burn decks are passe at this point in the current format. Give it a go if you're still working with Burn cards, but otherwise this blast is a dud.

Final Score: 2/5