Destroy as many Normal Monsters on the field as possible, and if you do, Special Summon Level 4 or lower Dinosaur-Type monsters from your Deck, up to the number destroyed, but destroy them during the End Phase. You can banish this card from your Graveyard, then target 1 Dinosaur-Type monster you control and 1 card your opponent controls; destroy them.
Tokens are treated as Normal monsters on the field so you can destroy them with Survival's End to special summon Dinosaurs from your deck.
The best monster to destroy with Survival End's second effect is Babycerasaurus so that you can search a Dinosaur monster from your deck. You can also special summon Babycerasaurus with Survival End's first effect and have him destroyed during the End Phase to trigger his search effect.
Summon Ojama Tokens to your opponent's field for Survival's End to destroy and special summon from your deck as many Dinosaur monsters as the Tokens you destroyed. As a Bonus Ojama Tokens will damage your opponent by 300 LP for each token destroyed.