A better Algos on rear-guard is the first Aqua Force RRR revealed.
V-BT11/013 RRR テリフィックコイル・ドラゴン Terrific Coil Dragon
Grade 2 / Normal Unit / Magallanica – Aqua Force – Tear Dragon
AUTO (RC) 1/Turn When is Stand by a card’s ability, you may have this unit get Power+5000 until end of turn.
AUTO (RC) When it attacks, if it is the first battle of this turn, COST [Soul Blast 1], and Stand this unit.
V-BT11/071 C 波乱の剛鞭 ゲオルゲ Steel Whip of Turbulence, George
Grade 3 / Normal Unit / Magallanica – Aqua Force – Aquaroid
Imaginary Gift: Accel
AUTO (RC) When it attacks, Stand one of your back row rear-guards.
ACT (VC) 1/Turn COST [Counter Blast 1 & Soul Blast 1], choose one of your opponent’s vanguards, and it gets Power-5000 until end of turn.
V-BT11/025 RR ケルピーライダー ペトロス Kelpie Rider, Petros
Grade 0 / Trigger Unit – Critical Trigger / Magallanica – Aqua Force – Aquaroid
CONT Sentinel (You may only have up to four cards with “CONT Sentinel” in a deck.)