And then if it was summoned with a Pendulum monster as fusion material it can destroy a monster your opponent controls and inflict damage equal to that monsters attack
Yu-Gi-Oh Master Duel: Best Starter Deck Explained The 3 starter decks each have their unique strengths, adopting different playstyles from various eras of the game, but the one which stands out in its approachability is Synchro of Unity
You can put it all together with a mana cost reducer (Hazoret's Monument, Goblin Warchief), a sacrifice outlet (Skirk Prospector is the best one), and some kind of mana engine (Birgi, God of Storytelling, Runaway Steam-Kin)
Backup @Ignister Level 3 DARK Cyberse Tuner Effect Monster ATK/ 1200 DEF/ 800 You can only use the 1st and 2nd effect of this card's name once per turn
Thrummingbird Thrummingbird is the classic proliferate bird
Now, on to the life side gain part of the card, which tends to trip up new players