Grand Knights

Sir Percival, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 3
ATK: 1200
DEF: 1000
Effect: If you control no monsters: You can Special Summon this card (from your hand). During your End Phase if you control another face-up "Grand Knight" monster, except "Sir Percival, the Grand Knight: You can send this face-up card to the Graveyard: Special Summon 1 level 5 "Grand Knight" monster from your Deck. You can only activate the effect of "Sir Percival, the Grand Knight" once per turn.

Sir Gawain, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 5
ATK: 2200
DEF: 1900
Effect: "Grand Knight" monsters you control cannot be destroyed by card effects.

Sir Bors, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 3
ATK: 800
DEF: 800
Effect: Once per turn, you can tribute 1 "Grand Knight" monster you control and target 1 monster your opponent controls: Return the target to the owner's hand.

Sir Gareth, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 5
ATK: 2100
DEF: 2000
Effect: When this card destroys a monster by battle and sends it to the Graveyard: You can Special Summon 1 level 3 "Grand Knight" monster from your Graveyard. Its effect is negated until your next turn.

Sir Galahad, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 3
ATK: 900
DEF: 500
Effect: If you control another "Grand Knight" monster except "Sir Galahad, the Grand Knight": You can tribute this card: Add 1 "Grand Knight" card from your Deck to your hand except "Sir Galahad, the Grand Knight". You can only activate the effect of "Sir Galahad, the Grand Knight" once per turn.

Sir Arthur Pendragon, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 7
ATK: 2500
DEF: 2700
Effect: You can Special Summon this card (from your hand) by tributing 1 level 5 "Grand Knight" monster you control. Once per turn you can target 1 Spell or Trap card on the field: Send it to the Graveyard. When this card is destroyed and sent to the Graveyard: Target 1 level 3 "Grand Knight" monster in your Graveyard: Special Summon it. During the turn it was Special Summoned, it cannot be destroyed by battle or by card effects.

Sir Launcelot du Lac, the Grand Knight
Type: Warrior
Attribute: EARTH
Level: 7
ATK: 2700
DEF: 2500
Effect: You can Special Summon this card (from your hand) by tributing 1 level 5 "Grand Knight" monster you control. Once per turn you can target 1 face-up card on the field: Its effects are negated until the End Phase of this turn. When this card is destroyed and sent to the Graveyard: Target 1 level 3 "Grand Knight" monster in your Graveyard: Special Summon it. During the turn it was Special Summoned, it cannot be destroyed by battle or by card effects.

Grand Knight Table of Honor
Continuous Spell Card
Effect: Once per turn you can Normal Summon 1 "Grand Knight" monster as an additional Normal Summon during your Main Phase. When a "Grand Knight" monster would be destroyed: You can send this face-up card to the Graveyard instead. You can only control 1 "Grand Knight Table of Honor". You can only activate 1 "Grand Knight Table of Honor" per turn.

Legendary Grand Knight Sword Excalibur
Spell Card
Effect: Target 1 "Grand Knight" monster you control. Until the End Phase of this turn, it is unaffected by other card effects while face-up on the field.

Can Sir Percival chain it's Summons to each other similar to Dark World Monsters or Cyber Dragons?