Weekly Bites reveals: Raizer series, first VR

Raizer Custom
ACT [Vanguard Circle] Once per turn: [Cost: Put 1 card from your hand to your soul] Until end of turn, this unit may attack even if you go first, and gets Drive Check -1.
AUTO [Rearguard Circle] Once per turn: When your other rearguard on the same column as this unit Stands, you may Stand this unit.

One of Nova Grappler's Double Rares, set number V-BT01/023 RR. Designed by Itou Akira and illustrated by DaisukeIzuka.

Hi-powered Raizer Custom
AUTO [Vanguard/Rearguard Circles]: When placed, call 1 "Battleraizer" from your soul to Rearguard Circle in the back row of the same column as this unit.
AUTO [Vanguard/Rearguard Circles]: When its attack hits a vanguard, by paying [Cost: Counterblast 1, choose 1 "Battleraizer" on your Rearguard Circle, and put it into your soul] choose 1 of your other rearguards and Stand it.
Battleraizer
AUTO: When you ride this unit, draw 1 card.

Battleraizer is a Common, Hi-powered is V-BT01/022 RR. Also designed by Itou and illustrated by DaisukeIzuka.

Perfect Raizer
Imaginary Gift: Accel
AUTO [Vanguard Circle]: When it attacks, by paying [Cost: Counterblast 2], choose 2 of your front-row rearguards and Stand them.
AUTO [Vanguard Circle]: When its attack hits, if you have a "Raizer" card in your soul, Countercharge 1, and 1 of your units gets Power +5000 until end of turn.

This is Nova Grappler's Vanguard Rare, V-BT01/004 VR. Designed by Itou and illustrated by ToMo.

Weekly Bites reveals: Producer Shimamura Masatoshi's comments

Cardfight!! Vanguard TCG producer Shimamura Masatoshi joins Doctor O to discuss game balance.

Force is a balanced Gift type with higher base power on its grade 2s and 3s for defense, and power gain from its Marker placement. It's dependent on the clan, but it tends to do well at attacking so long as you can strategically make use of the Force Markers.

Accel is an attack-oriented Gift. Its exclusive trait is Front Triggers, and depending on the clan tends towards standing rearguards through skills.

Protect is a defense-oriented Gift. Its markers can be used both as perfect guards and as discards for costs. The Gift tends to shine most in combination with each clan's specialties; searching the deck, draws, drawing, retiring, and so on.

Not every clan will be getting Front Triggers, Triple Drive not in manual

A leaked image from the Japanese First Guides distributed with the first Standard format flash decks reveals that not every clan will be getting Cardfight!! Vanguard's newest trigger type.

Front Trigger
"All of your front-row units gain +10000 Power. This is a trigger that only certain clans possess."
前列ユニット、すべてのパワーを＋１００００する。特定のクランのみが持つトリガーだ。

As Front Triggers were created to replace Stand Triggers--which executive producer Shimamura Masatoshi confirmed there will be no more of--it's possible that Bushiroad R&D is seeking to balance Fronts by only giving them to the clans specifically designed for them. In particular, Front benefits Accel clans much more than it does Force or Protect, as it addresses both their weakness of being unable to boost their additional rearguard circles and their comparative defensive weakness by giving them a more powerful damage check. (The currently revealed Accel clans in Standard release order are Nova Grappler, Tachikaze, Aqua Force, Pale Moon, and Murakumo.)

Also of note is that where the First Guide describes the different unit abilities like Boost and Intercept, no description of Triple Drive!!! is presented, reinforcing the idea that there will be no strides printed for Standard format. It is possible that Triple Drive!!! is not explained because none of the cards in the flash decks have this ability, but Front Triggers are also not present in either of these.