When a monster you control is destroyed by a card effect and sent to the Graveyard (except during the Damage Step): Pay 1000 LP; Special Summon 1 Level 4 monster from your Deck.
These cards have effects that could destroy your own monsters:
Rare Metal Dragon has the highest raw attack of all Level 4 or lower monsters. Use Soul Rope to Special Summon this 2400 beater from your deck.
PvP Best decks [10/19 updated!]
King of Games decks [October 2017]
Mind Scan Beadtdown V2: deck recipe
Chaos Frognarch: deck recipe
Cyber Angel: deck recipe
Skills (Yu-Gi-Oh! GX)
Duelist Chronicles: Set Sail for the Kingdom Event Underway!
Ojama: deck recipe
Wall of Disruption | Deck and Rulings
Cyber Angel Dakini | Decks and Ruling
Milla the Temporal Magician | Decks and Tips
Angmarl the Fiendish Monarch | Decks and Tips
Legion the Fiend Jester | Decks and Tips