Abhimanyu is the son of Arjuna.

Krishna — resides in — Dvaraka

Krishna is the lord of Dvaraka (Kushasthali): 'pashyanti nityam yad-anugraheshitam smitavalokam sva-patim sma yat-prajah' (SB 1.10.27), where the people daily behold their own Lord. Evidence: EXPLICIT.

The Unborn (aja), appearing among the Yadus

Vidura says the Lord appeared as the Unborn among the Yadus for the sake of those who take refuge: 'arthAya jAtasya yaduShv ajasya' (SB 3.1.44-45).

Alone in the beginning, His power asleep, His sight awake

Maitreya's account: in the beginning the Lord alone was, the Self of selves, all-pervading; then He was the seer but saw nothing to be seen, and took Himself as though not existent — 'mene asantam iva AtmAnaM supta-shaktir asupta-dR^ik' (SB 3.5.23-24).

Krishna — wields — Sudarshana Chakra

Krishna wields the Sudarshana chakra: 'sudarshanena svastrena svanam raksham vyadhad vibhuh' (SB 1.8.13) — 'svastrena', with His own weapon. Evidence: EXPLICIT.