Flame Noble Knight Renaud’s effect has been revealed and it’s direct support for the Warrior’s Strike SD!

Enseikishi Renaud / Flame Noble Knight Renaud
Fire Warrior / Effect
LV1 500/200
You can only Special Summon 1 card with this card’s name with the way written in its (1) effect per turn.
You can only use this card name’s (2) effect once per turn.
(1) If you control a FIRE Warrior monster, you can Special Summon this card (from your hand), and if you do, it is treated as a Tuner.
(2) If this card is Special Summoned: You can target 1 of your FIRE Warrior monsters or Equip Spells that is banished or in your GY, except “Flame Noble Knight Renaud”; add it to your hand.

Source