Felis allows obvious monster destruction, which is fantastic, but also mills turn 1 (if going second, because the opponent has no monsters when you go first) before the end phase and gets a Lightsworn into the graveyard for all future plays involving her, which there are quite a few
Albaz Strikes branded fusions keep it at the top of TCG decks tier list
Blackwing - Kalut the Moon Shadow X DARK Level 3 [ Winged Beast / Effect ] ATK 1400 DEF 1000 During the Damage Step, when your "Blackwing" monster battles (Quick Effect): You can send this card from your hand to the GY
The modern HERO deck contains more than just Elemental HEROs, though: it is an amalgam of the best cards from each HERO type, from the familiar Destiny HEROs to the advantage-generating Vision HEROs and the game-ending Evil HEROs
Sonata is your best extender that can also serve as an ATK/DEF buff
Nethersoul Dragon cannot be destroyed by battle, but it also cant destroy other Monsters in the traditional way